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• not penetrate into the capillary fringe in late summer. On the contrary, the measurements from the Middle Creek floodplain indicate that flood irrigation provides high moisture content in the topsoil and root zone. Therefore, there is no evidence of subirrigation in the floodplains of Middle and Fish Creeks. Infrared Color Photograph Analysis A color infrared aerial photograph of the proposed permit and adjacent area was supplied by the Office of Surface Mining in Denver, Colorado. The photograph was taken in late summer on September 9, 1978. Approximate scale of the photograph is 1:32,000. The photograph was analyzed using visual interpretation techniques to detect features which could indicate flood irrigation or sub-irrigation. A copy of the photograph is provided in Figure 10, Color Infrared Aerial Photograph. Interpretive factors used in identifying features included the use of • color, texture, location and stereoscopic examination for topographic relief. Descriptions and locations of features have been made with the photograph oriented so the photo number is positioned in the upper right corner with the top of the photograph pointing north. Color infrared reflectance (CIR) as recorded on this photograph renders a unique color of surface features which differ greatly from their natural color. A bright red color of CIR would show up on a natural color photograph as rich green and represents grasses which receive water from irrigation. Other red or orange color in the infrared are naturally green in color but vary in plant vigor,. photosynthetic activity, structure (trees, shrubs, grasses), or species composition. The darker green colors in the infrared indicate stands of sagebrush; the difference is due to the increase in the bare ground interspaces in the sagebrush stand. Bare ground along with yellowish-brown features or dry plant material has an infrared reflectance of white. The white linear features are usually dirt 2.06-18