Big Rock Quadrangle

NOTE: This is not the actual topographic map! This image depicts the area covered by the topographic map and identifies the surrounding maps. If you have additional questions contact the Information Office or call 217-244-2414.

County: DeKalb, Kane
Current Date: 1968
Photo Revision Date: 1975
Archive Date: 1968

Surrounding Quads

Northwest - Sycamore
North - Maple Park
Northeast - Elburn
West - Hinckley
East - Sugar Grove
Southwest - Somonauk
South - Plano
Southeast - Yorkville

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ISGS Publications

Updated 01/04/2010 SLD