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U.S. DEPARTMENT OF AGRICULTURE PAGE 2 OF 4 <br /> NATURAL RESOURCES CONSERVATION SERVICE 01/18/00 <br /> • <br /> CONSTRUCTION MATERIALS--Continued <br /> Rocky Mountain Materials - Schnurr, Stephen J. <br /> I I I I <br /> Map symbol Roadfill Sand Gravel Topsail <br /> and soil name <br /> I I I I <br /> 711 <br /> Midway----------1 Poor: (Improbable: lImprobable: (Poor: <br /> depth to rock, excess fines excess fines depth to rock, <br /> shrink-swell, too clayey, <br /> It. strength small stones <br /> I I I I <br /> 72: <br /> Midway----------(Poor: jlmprobable: lImprobable: IPoor: <br /> I depth to rock, I excess fines I excess fines I depth to rock, <br /> I shrink-swell, I I I too clayey, <br /> I low strength I I I small stones <br /> I I I I <br /> Cascajo---------l Poor: lImprobable: lImprobable: [Poor: <br /> slope large stones large stones too sandy, <br /> • small atones, , <br /> area reclaim <br /> I I I I <br /> 108: <br /> Shingle---------l Poor: lImprobable: (Improbable: IPoor: <br /> depth to rock excess fines I excess fines depth to rock <br /> 128: <br /> Wiley, Cool-----IGood IImprobable: lImprobable: IGood <br /> I excess fines excess fines I <br /> • <br />