South Dakota Round Barns & Other Round Structures List
– Aug 26, 2024
 

Number	County	Town	Size	Built	Verif	GPS	Description
							Thanks to Roy Meyer, Mankato, MN for most of these SD barns.
SD-02-01	Beadle	Huron		c1883	06-2002	N44 21.810 W98 13.461	In Huron. At the NW corner of 3rd St. SW & Montana Av. SW. Drake, octagon house, 2 story, flat roof.
SD-02-?1		Huron					In Huron. Hexagon bldg. (N44 21.851 W98 13.860)
SD-03-?1	Bennett	Martin					In Martin. Round bldg. (N43 10.286 W101 42.368)
SD-05-01	Brookings	Brookings				GONE	Round frame barn located in section 12. Known as the Kruse Farm barn. It has recently been reported that this barn has been gone for many years. The owner's mailbox is in the shape of a round barn.
SD-05-02		White			?	UNK	Round barn. From a postcard that shows a full form round barn with cupola, titled "H. A. Lillibridge Farm Scene", White, SD. There's a windmill next to it. It was possibly used at White on May 13, 1914. - Jocelyn Howells - 10-23-02.
SD-05-?1		Brookings					In Brookings. Pentagon bldg. (N44 16.430 W96 46.273)
SD-05-?2		Brookings					In Brookings. Round bldg. (N44 18.570 W96 47.779)
SD-05-?3		Brookings					In Brookings. Round bldg. (N44 18.997 W96 47.029)
SD-05-?4		Brookings					In Brookings. Round bldg. (N44 19.022 W96 46.885)
SD-06-01	Brown	Warner			06-2004	N45 16.19 W98 29.93	S. of Warner, Warner Township. US281 S. 3.8 miles from jct with Warner Rd. just W. of Warner, E. on 146th St. (gravel) 0.9 miles to the bldg on the S. side of the road up a driveway 0.1 miles. Octagon shed, faded red horizontal siding.
SD-06-02		Warner			06-2004	N45 14.807 W98 43.275	SW of Warner, New Hope Township. US281 S. 5.8 miles from jct with Warner Rd. just W. of Warner, W. on 148th St. (CR27) 10.0 miles, N. on 373rd Av. 0.2 miles to the barn on the E. side of the road up a driveway 350'. True round barn, faded red vertical siding, 2-pitch roof, central silo with cap.
SD-06-03		Warner			06-2004	N45 14.760 W98 40.330	SW of Warner, New Hope Township. US281 S. 5.8 miles from jct with Warner Rd. just W. of Warner, W. on 148th St. 7.7 miles to the bldg on the N. side of the road up a driveway 0.15 miles. Octagon shed, faded red vertical siding.
SD-06-04		Warner			06-2004	N45 15.178 W98 39.914	SW of Warner, New Hope Township. US281 S. 5.8 miles from jct with Warner Rd. just W. of Warner, W. on 148th St. (CR27) 7.0 miles, N. on 377th Av. (CR2) 0.6 miles to the bldg on the W. side of the road up a driveway 0.2 miles. Octagon shed, faded red horizontal siding.
SD-06-?1		Aberdeen					In Aberdeen. Dome bldg. (N45 27.406 W98 30.995)
SD-07-01	Brule	Chamberlain	~130'	1968	09-2017	N43 49.520 W99 19.490	In Chamberlain. St. Joseph Dr. N. 0.2 miles from jct with SD50 (Jasper Av.), W. on Red Cloud Dr. 100 yds to the bldg on the S. side of the road. Akta Lakota Museum, 10 sided bldg.
SD-08-?1	Buffalo	Ft. Thompson					In Ft. Thompson. Round bldg. (N44 03.995 W99 26.679)
SD-09-01	Butte	Nisland		1916	1994		SW of Nisland. Leave US212 at Nisland, go to SW edge of town, and drive about 1 mile. SW on gravel road to Butte-Lawrence county fairgrounds (visible from edge of town). Near E. side of fairgrounds is large white frame octagon pavilion. It is well maintained. Interior shows careful workmanship by builders. (N44 40.041 W103 34.103)
SD-09-?1		Spearfish					In Spearfish. Octagon bldg. (N44 29.179 W103 51.627)
SD-09-?2		Spearfish					In Spearfish. Round house. (N44 29.224 W103 52.169)
SD-09-?3		Belle Fourche					In Belle Fourche. Octagon house. (N44 39.272 W103 51.110)
SD-12-01	Clark	Clark			06-2004	N44 52.64 W97 44.18	In Clark. At the SE corner of US212 (1st Av.) & Dakota St. True round barn, former sales barn, now converted to the Playhouse Restaurant. There have been so many additions and changes to the structure that the large roof is now the chief feature that identifies it as true round barn.
SD-12-?1		Clark					In Clark. Octagon house. (N44 52.649 W97 44.251)
SD-14-01	Coddington	Watertown			06-2002	N44 51.70 W97 06.57	S. of Watertown. US81 S. 2.0 miles from jct with US212 in Watertown to the barn on the W. side of the road. Emminger, true round, cement block painted white, 2-pitch roof, octagon louvered cupola, "De Laval Dakota Dairy" painted on N. and S. sides, a few holes in the roof, fair condition.
SD-14-02		Watertown			06-2002	N44 53.30 W97 03.73	In Watertown. US212 W. 0.3 miles from jct with I29 (exit 177) in Watertown, S. on 33rd St. SE 0.1 miles to the building on the E. side of the road at the Mallard Pointe Industrial Park. Octagon building, brick, small square cupola w/octagon roof, 2 story & 2nd story is "all windows", segmented cone roof, excellent condition.
SD-16-01	Custer	Custer			07-2024	N43 45.921 W103 23.295	E. of Custer, East Custer Township. US16A E. (curves SE) 13.1 miles from jct with US16 in Custer to the turret on the SW side of the road. Octagon turret.
SD-16-02		Custer			07-2024	N43 45.917 W103 36.183	In Custer. At the SE corner of Mt. Rushmore Rd. & 3rd St. State Farm Insurance, octagon turret.
SD-16-03		Custer			07-2024	N43 46.494 W103 36.707	In Custer. On the SW side of 5th St.200' NW of 3rd at 1019. SE most bldg. Dept of Agriculture, hexagon bldg.
SD-16-04		Custer			07-2024	N43 46.496 W103 36.734	In Custer. On the SW side of 5th St.200' NW of 3rd at 1019. W. most bldg. US Forest Service, hexagon bldg.
SD-16-05		Custer			07-2024	N43 46.512 W103 36.717	In Custer. On the SW side of 5th St.200' NW of 3rd at 1019. W. most bldg. Supervisor's Headqtrs, hexagon bldg.
SD-16-06		Custer			07-2024	N43 46.160 W103 35.208	At Ken's Minerals in Custer. On the N. side of Mt. Rushmore Rd. 100 yds W. of Sylvan Lake Rd. at 12372. Behind the bldgs. True round bldg.
SD-17-?1	Davison	Mitchell					In Mitchell. Hexagon bldg. (N43 42.346 W98 02.483)
SD-17-02		Mitchell			07-2024	N43 42.878 W98 01.458	In Mitchell. At the NW corner of 6th St. & Lawler St. S. turret. Octagon turret.
SD-17-03		Mitchell			07-2024	N43 42.888 W98 01.458	In Mitchell. At the NW corner of 6th St. & Lawler St. N. turret. Octagon turret.
SD-17-04		Mitchell			07-2024	N43 44.535 W98 01.994	N. of Mitchell, Mitchell Township. 23rd Av. W. 0.3 miles from jct with Main St. on the N. side of Mitchell, N. on Indian Village Rd. 0.8 mile to the bldg on the NE side of the road. Thomsen Center, hexagon bldg.
SD-18-01	Day	Webster			1994		From Clark/Day county line go N. 2 miles on SR25; then turn E. (R.) and go 3 miles on CR36 (blacktop); then turn S. (R.) and go 0.6- miles on CR13 (gravel). Harry Svien farm is on W. side. Barn is octagonal with faded red horizontal siding white trim, and a small cupola. Silo with owner's name on it stands apart from barn. There is also a small hexagonal shed on the property. (N45 10.356 W97 28.528)
SD-19-01	Deuel	Clear Lake		1923	06-2002	--GONE-- N44 41.618 W96 27.170	SE of Clear Lake, Norden Township. SD22 E. (curves S.) 12.8 miles from jct with SD15 in Clear Lake, continue S. on 487th Av. 1.2 miles, E. on 185th St. 0.4 miles, S. on 488th Av. (which forms state line) 0.7 miles to the barn on the W. side of the road back in a barn lot about 100 yds. Completely hidden from the road by trees. Owner Jim Cleveland. The main part is a 12-sided one-story hog sales pavilion with matching windowed cupola and fair sized dormer on the E. over the main entrance. It has a long rectangular addition on the W. side. The whole structure was painted red with white trim. The paint is now almost completely faded out. Most of the numerous windows are broken. It is no longer in use and in poor condition. There was a small polygonal building, in poor condition, S. of hog pavilion and W. of rectangular barn and this building in now gone. Barn blew down 2014.
SD-19-?1		Gary					In Gary. Octagon bldg. (N44 47.286 W96 27.572)
SD-20-01	Dewey	Parade			1997		NE of Eagle Butte. There is reported to be an oval [maybe round - E. side?] hog barn owned by Frank Lorenz at 1.5 miles N. of the jct. of US212 and SR63. This building has not been investigated. It is difficult to photograph because of obstructions and "NO TRESPASSING" signs. Sits back quite a ways from the road. (N45 01.699 W101 09.340)
SD-20-?1		Eagle Butte					In Eagle Butte. Round school. (N44 59.568 W101 14.191)
SD-22-?1	Edmunds	Ipswitch					In Ipswitch. Round school. (N45 26.737 W99 01.929)
SD-23-?1	Fall River	Hot Springs					In Hot Springs. Round bldg. (N43 26.251 W103 29.708)
SD-24-01	Faulk	Zell			06-2004	N44 53.87 W98 43.59	In Zell, Zell Township. US212 E. 0.1 miles from jct with Paul St. in Zell, N. on 1st St. 0.2 miles to farm at end of road. 12-sided barn, white horizontal siding, large hay dormer on E. side, low cupola w/aerator, fair condition. There is also a small polygonal building (chicken house?) E. of the barn.
SD-24-02		Zell			06-2004	N44 53.86 W98 43.57	In Zell, Zell Township. US212 E. 0.1 miles from jct with Paul St. in Zell, N. on 1st St. 0.2 miles to farm at end of road. Next to SD-24-01. 12-sided barn, probably chicken house, no cupola, aerator, poor condition.
SD-25-01	Grant	Goodwin		1914	06-2002	N45 00.11 W96 52.10	N. of Goodwin. CR289 N. 6.0 miles from jct with US212 just N. of Goodwin, W. on 166th St. 0.5 miles, N. on 467th Av. (CR11) 1.6 miles to the barn on the W. side of the road up a driveway 0.4 miles. Lloyd Evjen, octagon, white metal vertical siding, cupola w/dormer on the E., no longer in use, good condition. It is said to have been purchased from a mail-order house. Barn is readily visible from CR11; it stands on a slope.
SD-25-02		LaBolt			?	UNK	NE of LaBolt. 2 miles N. and 6 miles E. of La Bolt, Wilford Anderson Farm. Round. [Not found & no one to ask. - 6-21-02 - DJT]
SD-25-03		Big Stone City			06-2001	N45 17.331 W96 31.149	W. of Big Stone City, Big Stone Township. US12 SW 2.5 miles from jct with SD109 in Big Stone City, N. on 145th (484th ) St. 0.8 miles, W. on 484th (CR4) Av. 0.25 miles, N. on 146th (484th) St. 0.3 miles to the barn on the W. side of the road. Harold Rabe, true round barn, faded red horizontal siding, conical roof, large cupola, hay dormer on the N., fair condition, stands N. of other buildings. Stave silo is surrounded by manger; rest of interior is divided into pins. Still used for cattle.
SD-26-01	Gregory	Gregory		ca 1920	1994		At 212 E. 2nd St. in Gregory there is an octagonal sales barn used by the Gregory Livestock Auction. White with red trim, with a large matching cupola, the building has many lean-tos and wings attached to it and is surrounded on three sides by holding pens. Still in use. (N43 13.708 W99 25.704)
SD-27-01	Haakon	Philip	38'		07-2013	N44 02.402 W101 40.596	In the fairgrounds W. of Philip, West Haakon Township. Pine St. W. 0.55 miles from jct with SD73 (Larimer Av.) to the bldg on N. side of of the road. 4-H Pavilion, 15-sided bldg, white vertical siding, used seasonally, good condition.
SD-27-?1		Philip					In Philip. Round bldg. (N44 02.402 W101 40.596)
SD-29-01	Hand	Miller			05-2004	N44 30.89 W98 59.03	In Miller. E 1st St. E. 0.25 miles (3 blocks) from jct with SD45 (Broadway Av.) in Miller, S. on 3rd Av. SE 300' to the barn on the W. side of the road. True round sales barn, red vertical siding, large windowed cupola, good condition, surrounded on N., W., and S. sides by holding pens, making photography difficult except from E. side.
SD-29-02		Orient	60'	1911	05-2004	N44 51.809 W99 00.183	SE of Orient, Park Township. CR1 E. 3.3 miles from jct with Autumn St. in Orient, continue E. on US212 1.6 miles, S. on SD45 2.1 miles, W. on 174th St. 0.8 miles to the barn on the S. side of the road up a driveway 0.15 miles. Morris #1, octagon barn, 2 story, red horizontal siding, central wooden silo, large dormer, large cupola w/o windows or vents w/aerator. On the former Mike Morris farm, now owned by Scot and JoEllen Wieseler. It is used for storage and is in good condition. Said to have been built in 1911, though a picture taken before the present owners acquired it shows the date of 1918, the year the Morris family moved to the farm. Built by FA Anderson. Just NE of SD-29-03.
SD-29-03		Orient		1911	05-2004	N44 51.771 W99 00.227	Just SW of SD-29-02. Morris #2, octagon barn, 1 story, red horizontal siding, large cupola. Used for hogs and is in fair to good condition. Said to have been built in 1911.
SD-32-01	Hughes	Blunt			05-2004	N44 30.662 W99 59.100	SE of Blunt. Bluff St. S. 30' from jct with US14 on the SE side of Blunt, E. on 198th St.0.15 miles to the barn on the S. side of the road. Octagon livestock sales barn, white horizontal siding, large cupola. Partly obscured by sunflower field by midsummer.
SD-33-01	Hutchinson	Freeman			06-2002	N43 21.10 W97 25.30	In Freeman. 4th St. W. 0.05 miles from jct with US81 in Freeman to the house on the S. side of the road. Round house, possibly concrete walls & roof, appears to have skylight inplace of cupola, excellent condition.
SD-33-?1		Parkston					In Parkston. Round Church. (N43 23.705 W97 59.435)
SD-35-01	Jackson	Stamford		1919	07-2024	N43 52.988 W101 08.456	At 1880 Town W. of Stamford, East Jackson Township. I90 W. 2.0 miles from jct with CS2 (I90 exit 172) just NW of Stamford, N. on SD63 (at I90 exit 170) 0.1 miles to the barn on the E. side of the road. 14-sided barn, red horizontal siding, 2-pitch segmented roof, louvered cupola, good condition. Built near Draper, it was brought to this new site, 45 miles away, by Clarence Hullinger, who operates "1880 Town". It now serves as the main entrance and headquarters; it has been modified in various ways.
SD-35-02		Kadoka	65'	1979	07-2013	N43 50.254 W101 31.406	In Kadoka. SD73 S. 0.2 miles from jct with I90 exit 150 to the bldg on the W. side of the road at 511. Sinclair Gas Station, true round bldg.
SD-35-?1		Wanblee					In Wanblee. Round bldg. (N43 33.824 W101 39.263)
SD-35-?2		Cottonwood					In Cottonwood. Hexagon bldg. (N43 57.970 W101 54.344)
SD-36-?1	Jerauld	Wessington Springs					In Wessington Springs. Geodesic house. (N44 04.853 W98 34.235)
SD-37-01	Jones	Freier	60'	1918	1994		From exit 201 of I90, go N. 1.4 miles to Draper. From Cenex gas station go E. 0.7 miles on gravel road; then turn N. (L.) and go 1.8 miles on another gravel road; then turn E. (R.) and go 2.2 miles on another gravel road. Barn is on N. (L.) side of road. It lost its original roof in a tornado. True round, it has red vertical metal siding; there is no cupola. Present owner uses it for sheep and has recently made extensive repairs. Has 18 sash windows & four doors. Built from a pre-cut kit ordered by catalog. It is the only known example of a pre-cut wood frame barn in the state. (N43 57.116 W100 28.978)
SD-37-?2		Wessington Springs					In Wessington Springs. Round house. (N44 05.065 W98 33.979)
SD-39-01	Lake	Madison				GONE	Barn is on E. side of road, 0.5 miles N. of National Guard Armory, in Madison. Hollow tile with conical roof, gothic arch wing on the S. side. Silo inside but does not extend through roof. Building is run-down but may be still used. (Razed 2000 - 7-4-01 - JT)
SD-39-02		Madison			08-2012	N43 57.884 W97 18.352	WSW of Madison, Winfred Township. US81 W. 6.1 miles from jct with SD34 on the W. edge of Madison, S. on 448th Av. (CR47) 3.0 miles, W. on 236th St. (CR42) 2.9 miles to the barn on the N. side of the road. Brian Hodne, true round barn, tile, 2-pitch roof, central silo protrudes through the roof, hay dormer on S., unused, roof poor condition, sides good condition. Roof has been replaced at some time.
SD-39-?1		Chester					In Chester. Round house. (N43 54.924 W96 55.684)
SD-40-01	Lawrence	Sturgis	50'	1999	07-2013	N44 23.683 W103 36.506	W. of Sturgis, South Lawrence Township. US14A W. 5.0 miles from jct with I90 exit 30 on the W. side of Sturgis to the house on the S. side of the road at 12199. Hexagon house, horizontal siding, very small cupola.
SD-41-01	Lincoln	Canton		1917	06-2002	N43 20.82 W96 44.44	NW of Canton. US18 W. 6.7 miles from jct with SD44 in Canton, N. on SD44 2.0 miles, continue W. on SD44 1.0 miles, N. on 473rd 1.2 miles to the barn on the E. side of the road up a driveway 0.3 miles. Easily viewed from the S. from 279th. True round, dark tile, central silo protrudes through the roof, fair condition. Not used and the roof is deteriorating.
SD-43-01	McCook	Salem			06-2002	--GONE-- N43 48.193 W97 27.703	NW of Salem. US81 N. 5.0 miles from jct with 252nd on the N. side of Salem, W. on 247th 3.6 miles to the barn on the S. side of the road standing alone in a field. True round barn, tile, dome roof, central silo protrudes through the roof. Roof has a large hole on the E. & numerous smaller holes; walls still in good condition.
SD-43-02		Montrose			08-2012	N43 46.104 W97 10.189	N. of Montrose. 1st St. N. 0.6 miles from jct with SD38 in Montrose, E. on 254th St. 0.25 miles, N. on Valley Rd. 3.8 miles, E. (curves N.) on 250th St. 1.3 miles, continue N. on 452nd Av. 0.55 miles to the barn on the W. side of the road. True round barn, tile, 2-pitch roof, central silo protrudes through the roof, very good condition.
SD-43-?1		Canistota					In Canistota. Round house. (N43 35.958 W97 17.574)
SD-46-01	Meade	Sturgis			06-2001	N44 21.860 W103 28.146	SE of Sturgis. I90 SE from Sturgis about 3.5 miles to exit 34, W. on Old Stone Rd. 150', SE on Pleasant Valley Dr. about 0.7 miles to the entrance to Black Hills National Cemetery. Go past farmstead on R., turn R. on gravel road and go to entrance to field road on R. Log barn, can be seen about 200 yards to the N. (also visible from I90). True round, vertical log siding, large louvered cupola topped by a ventilator, very good condition. Used for horses.
SD-46-?1		Ft. Meade					In Ft. Meade. Custer Av. N. 0.15 miles from jct with SD34/79 to the school on the E. side of the road. True round school. (N44 25.057 W103 27.894)
SD-46-?2		Sturgis					In Sturgis. Octagon house. (N44 24.321 W103 31.544)
SD-49-01	Minnehaha	Sioux Falls		1920	06-2002	N43 32.51 W96 38.97	E. of Sioux Falls. SD42 E. 2.2 miles from jct with I229 (exit 6), S. on S Powder House Rd. 0.15 miles to the barn on the E. side of the road at 600 S. Powder House Rd. Shafer, tile, 2-pitch roof, central silo extends through the roof, many small holes in roof, fair condition. Barn cannot be seen from Powder House Rd. Picture taken from the N. from SD42.
SD-49-02		Sioux Falls		1917	06-2002	N43 39.07 W96 42.94	N. of Sioux Falls. SD115 N. 3.2 miles from jct with I90 (exit 399) at the NE corner of Sioux Falls, W. on Northview 0.15 miles to the barn. Christensen, cement block walls, built as a dairy barn, it is now used for horses, ventilator w/weather vane, shingled 2-pitch roof, very good condition.
SD-49-03		Sioux Falls			07-2024	N43 33.148 W96 43.78	In Sioux Falls. On the NW side of 5th St. 400' N. of 6th St. at 425. Courthouse, octagon turret.
SD-49-04		Sioux Falls			07-2024	N43 33.841 W96 44.919	In Sioux Falls. On the N. side of Russell St. 100 yds W. of West Av. at 1600. Round turret.
SD-49-05		Sioux Falls			07-2024	N43 32.608 W96 43.725	In Sioux Falls. On the W. side of Main Av. across from the W. end of 12th St. Cinedome & Sweetman Planetarium, true round bldg.
SD-49-06		Sioux Falls			07-2024	N43 33.598 W96 44.654	In Sioux Falls. On the W. side of Covell Av. 0.1 miles N. of Madison St. at 1101. Health Care, octagon bldg, flat roof.
SD-49-07		Sioux Falls			07-2024	N43 32.539 W96 43.665	In Sioux Falls. On the S. side of 13th St. 130' E. of Main Av. Calvary Episcopal Cathedral, octagon turret.
SD-49-08		Sioux Falls			07-2024	N43 30.474 W96 41.160	In Sioux Falls. At the NW corner of 49th St. & Kris Dr. Southern Hills UMC, octagon church.
SD-49-09		Sioux Falls			07-2024	N43 31.306 W96 45.553	In Sioux Falls. On the S. side of 33rd St. ½ block E. of Williams Av. at 2707. Good Shepherd, hexagon church.
SD-49-10		Sioux Falls			07-2024	N43 32.110 W96 41.711	In Sioux Falls. On the E. side of Southeastern Av. 0.15 miles S. of 18th St. at 1208. Church of Christ, octagon church.
SD-49-11		Sioux Falls			07-2024	N43 37.149 W96 42.807	N. of Sioux Falls, Mapleton Township. Cliffe Av. N. 0.75 miles from jct with I90 exit 399, W. on 72nd St. 0.1 miles, N. on 10th Av. 0.2 miles to the house on the W. side of the road at 6121. Octagon house.
SD-49-?4		Sioux Falls					In Sioux Falls. Round bldg. (N43 32.271 W96 45.861)
SD-49-?6		Sioux Falls					In Sioux Falls. Round bldg. (N43 32.802 W96 43.769)
SD-50-01	Moody	Flandreau			06-2002	N44 02.59 W96 35.45	In Flandreau. SD13 S. 0.35 miles (4 blocks) from jct with SD32 in Flandreau, W. on Broad Av. 0.15 miles to the barn on the S. side of the road. Octagon barn, faded red horizontal siding, large louvered & windowed cupola, cone roof, fair condition. Building is leaning to W.
SD-50-02		Trent			06-2002	N43 54.39 W96 41.34	W. of Trent. CR14 (240th St.) W. 1.75 miles from jct with 1st St. in Trent to the barn on the N. side of the road at the "Little Village Farm". True round, red horizontal siding w/white trim, aerator, cone roof, excellent condition. (Moved from the banks of Big Souix River.)
SD-50-03		Trent		2001	06-2002	N43 54.42 W96 41.32	W. of Trent. CR14 (240th St.) W. 1.7 miles from jct with 1st St. in Trent, N. on 476th Av. 0.05 miles to the barn on the W. side of the road at the "Little Village Farm". 16-sided barn, white metal vertical siding, aerator, green segmented cone roof, excellent condition.
SD-50-04		Trent			06-2002	N43 54.402 W96 41.344	W. of Trent. CR14 (240th St.) W. 1.75 miles from jct with 1st St. in Trent barn on the N. side of the road at the "Little Village Farm". True round building, red vertical siding, weather vane, cone roof, excellent condigion.
SD-50-05		Trent			06-2002	N43 54.41 W96 41.35	W. of Trent. CR14 (240th St.) W. 1.75 miles from jct with 1st St. in Trent barn on the N. side of the road at the "Little Village Farm". Hexagon building, red vertical siding, aerator, sectional cone roof, excellent condition.
SD-50-06		Flandreau			06-2002		SE of Flandreau. SD13 S. 2.8 miles from jct with SD32 in Flandreau, E. on SD34 2.5 miles to the house on the S. side of the road. Geodesic house. (N44 00.435 W96 32.255)
SD-50-?1		Flandreau					In Flandreau. Round bldg. (N44 03.013 W96 36.210)
SD-51-01	Pennington	Rapid City		c1930s	07-2024	N43 58.358 W103 18.796	SSW of Rapid City, Mt. Rushmore Township. US16 S. (curves W.) 10.0 miles from jct of SD79 (St. Joseph St.) in Rapid City to the barn on the S. side of the road at the road leading to Sitting Bull Crystal Cave. Octagon barn, white vertical siding with 2 sets of doors in each side, segmented conical roof, small louvered cupola, fair condition. Operated as a tourist attraction. Does not appear to be in use.
SD-51-02		Rapid City			06-2001	N44 04.624 W103 12.047	In Rapid City. SD44 (Omaha St.) W. 0.5 miles from jct with US16 bypass, S. on La Crosse St. about 0.3 miles to the Pennington County fairgrounds, on the E. side of the road. Horticulture Hall, octagon barn, white horizontal siding, roof consists of 8 curved segments, giving dome effect, "steeple", excellent condition. Reported to have been known at one time as Alfalfa Palace.
SD-51-03		Hill City			07-2024	N43 56.011 W103 34.456	In Hill City. On the W. side of Walnut Av. 350' N. of Elm St. at 137. Octagon turret.
SD-51-04		Rapid City			07-2024	N43 59.460 W103 16.325	S. of Rapid City, Mt. Rushmore Township. US16 S. 2.3 miles from jct with Catron Blvd on the S. side of Rapid City to the bldg on the W. side of the road at 8955. Reptile Gardens, true round bldg, glass dome roof.
SD-51-05		Rapid City			07-2024	N44 02.110 W103 16.133	In Rapid City. Catron Blvd W. 1.5 miles from jct with US16 on the S. side of Rapid City, N. on Sheridan Lake Rd. 0.2 miles, E. (curves N.) on Summerset Dr. 0.25 miles, W. on Springtree Ct. 250' to the house on the S. side of the road at 4935. Octagon house.
SD-51-06		Rapid City			07-2024	N44 00.160 W103 17.822	In Rapid City. At the NE corner of Dunsmore Rd. & Albertta Dr. Octagon house. Octagon house, stone walls.
SD-51-07		Rapid City			07-2024	N44 03.353 W103 15.265	In Rapid City. Octagon house.
SD-51-08		Rapid City			07-2024	N44 03.363 W103 15.262	In Rapid City. Minnewasta Rd. SE 0.5 miles from jct with Sheridan Lake Rd. to the house to the E. at 2231. N. most bldg. 16-sided house.
SD-51-09		Rapid City			07-2024	N44 06.318 W103 15.187	In Rapid City. Fountain Springs, octagon church.
SD-51-10		Rapid City			07-2024	N44 03.396 W103 15.243	In Rapid City. Minnewasta Rd. SE 0.5 miles from jct with Sheridan Lake Rd. to the turret to the NE at 2225. Octagon turret.
SD-51-?4		Rapid City					In Rapid City. Pentagon bldg. (N44 04.235 W103 10.866)
SD-51-?6		Box Elder					In Box Elder. Round school. (N44 08.231 W103 03.800)
SD-53-01	Potter	Gettysburg	96'		09-2017	N45 12.152 W99 59.712	N. of Gettysburg, Central Potter Township. US212 W. 5.1 miles from jct with Main St. in Gettysburg, N. on US83 13.0 miles, E. on 151st St. (gravel) 3.0 miles to the barn on the N. side of the road. True round barn, 2-pitch conical roof, wing extending around barn, gambrel-roofed entrance on S. side, unused and deteriorating.
SD-53-02		Gettysburg			05-2004	N45 01.114 W99 56.442	In the Potter County fairgrounds E. of Gettysburg, Central Potter Township. US212 E. (curves NE) 1.0 miles from jct with Main St. in Gettysburg, N. on 311th Av. (CR155, Nebraska St.) 300', W. into the fairgrounds 250' to the barn. Octagon barn, white horizontal siding, livestock sales barn, large cupola. The central building is octagonal, with two rectangular wings that somewhat conceal the original design.
SD-53-03		Seneca		1903/7	1994	GONE	From US212, 5 miles W. of Seneca and 2 miles W. of Faulk/Potter county line, turn N. on gravel county road (sign points to "Tolstoy 10 miles") and go 6 miles Then turn W. (L.) on gravel road and go 2.5 miles to long farm driveway on N. (R.) side. Take this driveway 0.4 miles to John Penrod farm. On E. side of complex of farm buildings (including unoccupied house and occupied trailer) there is a one-story oblong brick hog barn. No longer in use, it is in poor to fair condition. Early picture shows it with oval cupola, now gone, and several small windows, now boarded up, in roof. May have been built in 1903 or 1907. Satellite images show it gone 5-19-16.
SD-56-?1	Shannon	Pine Ridge					In Pine Ridge. Round bldg. (N43 01.575 W102 33.040)
SD-57-?1	Spink	Redfield					In Redfield. Geodesic house. (N44 52.867 W98 30.987)
SD-57-?2		Mellette					In Mellette. Octagon church. (N45 09.319 W98 30.149)
SD-59-?1	Sully	Onida					In Onida. Octagon bldg. (N44 41.909 W100 03.810)
SD-61-?1	Tripp	Winner					In Winner. Round house. (N43 22.384 W99 50.660)
SD-62-01	Turner	Freeman			?	UNK	SE of Freeman. 5 miles E. and 5.5 miles S. of Freeman. Round. An ag extension agent gives the location as: Section 35, Township 98N, Range 55W. [Barn not verified - reliability of information unknown] [Not found & the farmer I asked didn't know about it. - 6-20-02 - DJT]
SD-62-?1		Centerville					In Centerville. Hexagon church. (N43 07.163 W96 57.335)
SD-62-?2		Chancellor					In Chancellor. Round Church. (N43 22.389 W96 59.535)
SD-63-01	Union	Alcester			06-2002	--GONE-- N42 59.788 W96 47.128	S. of Beresford. 471st St. S. 6.1 miles from jct with 298th on the SW corner of Beresford to the house on the E. side of the road just S. of 303rd St. Twelve-sided house, white horizontal siding, no cupola, outside chimney on S. side, fair condition. May have had cupola.
SD-63-02		North Sioux City	38'	1985	07-2009	N42 30.507 W96 30.141	SW of North Sioux City, Big Sioux Township. Dakota Dunes Blvd W. 0.1 miles from jct with I29 exit 1, N. on Sioux Point Rd. 0.5 miles, W. on Flurie Rd. 0.2 miles, S. on Shay Rd. 0.1 miles to the house on the W. side of the roadat 811. Urbansky, geodesic house.
SD-63-03		North Sioux City	60'	1974	07-2009	N42 30.327 W96 31.176	SW of North Sioux City, Big Sioux Township. Dakota Dunes Blvd W. 0.1 miles from jct with I29 exit 1, N. on Sioux Point Rd. 0.5 miles, W. (curves SW) on Flurie Rd. 1.0 miles, NE on Hoffman Rd. 0.1 miles, SW (curves SE) on Edgewater Ln. 0.3 miles to the house on the SW side of the road at 19. Geodesic house & garage, geodesic domes put on in 1993, pentagon cupola.
SD-63-04		North Sioux City	78'	1993	07-2009	N42 31.249 W96 29.904	In North Sioux City. SD105 E. 0.1 miles from jct with I29 exit 2, S. on Derby Ln. 0.25 miles to the church on the W. side of the road at 305. (Church at the Gate, octagon church, tan vertical siding.
SD-63-?1		North Sioux City					In North Sioux City. Octagon bldg. (N42 33.158 W96 31.263)
SD-64-?1	Walworth	Mobridge					In Mobridge. Octagon house. (N45 33.729 W100 26.615)
SD-65-01	Yankton	Yankton			06-2002	N42 53.20 W97 16.47	E. of Yankton. SD50 E. 6.3 miles from jct with US81 in Yankton, N. on 446th 0.5 miles to the barn on the E. side of the road at 31047 446th Av. Small octagon frame barn, white horizontal siding, tall louvered coupla, cone roof, good condition. (House and other buildings are on W. side of the road.)
SD-65-02		Yankton	35'	1913	08-2004	N42 56.04 W97 19.35	NE of Yankton, Mission Hill Township. SD50 E. 6.3 miles from jct with US81 in Yankton, N. on 446th 2.0 miles, W. on CR366 (309th St.) 2.2 miles, N. on CR369 (444th Av.) 1.7 miles to the shed on the W. side of the road up a driveway 0.2 miles at 30725 444th Av. Curt Nelson, small octagon frame machine shed, white horizontal siding, louvered cupola, cone roof, very good condition. Original construction cost $1,325. Restored Jul 2004.
SD-65-?1		Yankton					In Yankton. Round bldg. (N42 52.126 W97 23.701)
SD-65-?2		Yankton					In Yankton. Round bldg. (N42 52.718 W97 23.428)