(Prism Trail, TN-45-17) in Jefferson City, Jefferson County, TN. Russell Av. N. 0.25 miles from jct with US11E, W. on Mountacastle St. 0.65 miles, SW on Old Andrew Johnson Hwy 100 yds, NW on TN92 0.3 miles to the quilt on the NE side of the road. Echo Valley Farm. (N36 07.336 W83 30.587) Photos by Jack & June Schmidt 6-7-18.