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| (SD-16-06) at Ken’s Minerals in Custer, Custer County, SD. On the N. side of Mt. Rushmore Rd. 100 yds W. of Sylvan Lake Rd. at 12372. Behind the bldgs. (N43 46.160 W103 35.208) Photo by Mark Comstock 7-21-24. |
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| (SD-16-06) at Ken’s Minerals in Custer, Custer County, SD. On the N. side of Mt. Rushmore Rd. 100 yds W. of Sylvan Lake Rd. at 12372. Behind the bldgs. (N43 46.160 W103 35.208) Photo by Mark Comstock 7-21-24. |