by B.K. Goodwin, folded 43 x 30-inch color 1:24,000-scale geologic map with explanation, 1980. Geologic map and explanation describe the stratigraphy, structure, economic geology, and environmental geology of the Bon Air 7.5-minute quadrangle in Henrico and Chesterfield counties. Piedmont igneous and metamorphic rocks, Richmond Basin sedimentary rocks, Coastal Plain sediments, and recent allluvium are depicted on the geologic map with cross-sections. Eleven active and inactive quarries for granite, sand and gravel and granite are shown along with rock repository location.
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