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These maps are on a topographic base at a scale of 1:100,000 (1 inch equals about 1 1 /2 miles). Each map is $4.00. OF 302 is available in color on a planimetric base for $8.00; please order as OF 302C.
| OF 302. |
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Potential crushed stone resources of the Bellefontaine, Ohio, 30 x 60 minute quadrangle |
| OF 303. |
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Potential sand and gravel resources of the Bellefontaine, Ohio, 30 x 60 minute quadrangle |
| OF 305. |
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Potential crushed stone resources of the Ohio portion of the Piqua, Ohio-Indiana 30 x 60 minute quadrangle |
| OF 306. |
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Potential crushed stone resources of the Ohio portion of the Lima, Ohio-Indiana 30 x 60 minute quadrangle |
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