Mount Clare, Iowa

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

• 1936 USGS Fort Madison quadrangle1:62500, 3 printings
• 1958 USGS Burlington quadrangle1:250000, 4 printings
• 1961 USGS Burlington quadrangle1:250000
• 1963 USGS Burlington quadrangle1:250000
• 1964 USGS Nauvoo quadrangle1:24000, 2 printings
• 1985 USGS Burlington quadrangle1:100000, 2 printings
• 1990 USGS Burlington quadrangle1:250000, 2 printings

Regional context, not property-specific evidence. The federal mineral resources record lists 4 workings within 5 miles of Mount Clare: 3 past producers, 1 producer. 1 still produces. What was taken out: Sand and Gravel, Construction, Stone, Crushed/Broken, Molybdenum. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.

Every working recorded in Lee County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

This settlement is recorded in the Geographic Names Information System as feature 464346. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.