Willow Ridge, Illinois

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.

• 1892 USGS Morris quadrangle1:62500, 3 printings
• 1918 USGS Morris quadrangle1:62500, 3 printings
• 1953 USGS Morris quadrangle1:24000, 3 printings
• 1954 USGS Morris quadrangle1:62500, 2 printings
• 1958 USGS Aurora quadrangle1:250000, 3 printings
• 1961 USGS Aurora quadrangle1:250000
• 1985 USGS Ottawa quadrangle1:100000
• 1991 USGS Ottawa quadrangle1:100000
• 1993 USGS Morris quadrangle1:24000

History of Grundy County, Illinois : Containing a History from the Earliest Settlement to the Present Time ... , Biographical Sketches, Portraits of Some of the Early Settlers, Prominent Men, Etc, published 1882 has no passage naming this settlement, which was common for smaller places. Its township is covered in full.

Regional context, not property-specific evidence. The federal mineral resources record lists 5 workings within 5 miles of Willow Ridge: 3 past producers, 1 producer, 1 plant. 2 still produce. What was taken out: Sand and Gravel, Construction, Stone, Clay. 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 Grundy 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 1811089. 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.