. Canon City District wilderness planning amendment. Wilderness areas; Land use. 35 Other Minerals The following mineral resources are broken down Individually by commodity and findings are based on sources identified above. Anoraalous concentrations for barite are found in association with Precambrlan migmatlc gneiss, especially adjacent to the McClure Mountain Complex. These anomalous values are probably due to barite gangue mineralization present In veins and fracture zones. Barite in association with base metals has been mined in the area of Grape Creek and East Pierce Gulch, however, bari
. Canon City District wilderness planning amendment. Wilderness areas; Land use. 35 Other Minerals The following mineral resources are broken down Individually by commodity and findings are based on sources identified above. Anoraalous concentrations for barite are found in association with Precambrlan migmatlc gneiss, especially adjacent to the McClure Mountain Complex. These anomalous values are probably due to barite gangue mineralization present In veins and fracture zones. Barite in association with base metals has been mined in the area of Grape Creek and East Pierce Gulch, however, barite mineralization In a deposit of economic size has not been Identified within the unit. Very minor amounts of gold have been found associated with the copper, lead, and zinc deposits mentioned above. There are no known occurrences of gold in economic deposits or placers in the WSA. There are large amounts of salable mineral resources, sand and gravel, fill, and moss rock in the WSA, however, these resources are present at other sites in the region which are more accessible and require less operating costs. Therefore, the relative value of these resources in the WSA is minor. Soils There are five soil associations within this WSA: Brownsto-Martinsdale-Amalia, Ustic Torriorthents-Rock outcrop; Granite-Seitz-Larand, Boyle-Rock outcrop- Cathedral, Sedillo-Quazo-Rock outcrop, and also units of outcrop. Refer to Appendix B for more detail. Water Grape Creek meanders through portions of the study area. The unit itself contributes little runoff to the stream, except in the case of flash floods. Floods originating in dry gulches tributary to the stream can have a profound effect on Grape Creek depending on their size and duration. The floods are the result of intense rainfall falling on shallow, rocky soils. Resource management in areas such as these has little effect on the frequency and magnitude of flooding. The water quality of Grape Creek is good except during periods of flas
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