Caledonia Historic District (map), roughly bounded by Patrick, College and Alexander streets, and MO 21 on Main Street, Caledonia (10/27/86)
Cresswell Petroglyph Archaeological Site (23WA26), address restricted (2/12/71)
Cresswell, George, Furnance, MO F, Potosi vicinity (5/23/88)
Land Archaeological Site (23WA66 and 23WA67), address restricted (5/05/72)
Lost Creek Pictograph Archaeological Site (23WA62), address restricted (1/25/71)
Palmer Historic Mining District, address restricted, Potosi vicinity (11/29/10)
Queen, Harrison, House, Highway C, 1.3 miles west of MO 21, Caledonia vicinity (6/27/02)
Susan Cave (23WA190), address restricted. (7/08/89)
Washington County Courthouse, 102 N. Missouri St., Potosi (10/25/11)
Washington State Park CCC Historic District (ECW Architecture in Missouri State Parks, 1933-1942 TR), Potosi vicinity (3/04/85)
Washington State Park Petroglyph Archaeological Site (23WA1 and 23WA2), address restricted (4/03/70)
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