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5:7IL5 INFORNATiON n U top of a mineable material and therefore should not be directly disturbed as a result of the mining activity. FIELD ANALYSIS OF SOIL OCCURRENCES: On this site, the soils generally follow the patterns indicated in the U.S. Soil Conservation Service survey of E1 Paso County. Much of the western edge of the higher areas is occupied by the Schamber and Stoneham soils with some Razor. However, the Razor soil is not as abundant as the S.C.S. survey would lead one to expect. Near the gravel exposures the Schamber is clearly the dominant soil and is indicated by large quantities of yucca. In slightly higher .pa elevations the soil becomes more clayey and loamy being occupied by the Stoneham and Razor soils. The side slopes of the gravel mesas are occupied by a degraded form of the • Schamber soil. The mild horizon structure of the Schamber on more level ground gives way to a virtually structureless soil on the slopes. At the head of many of the gullies and washes, a thick loam has developed. This appears to be primarily of a Stoneham variety, but also exhibits an unusually rich form of the Schamber soil. It appears that these small areas of rich soil form a hybrid soil between the Schamber-Razor complex and the Stoneham. The gullies lead into a wide variety of soils in the gully and wash bottoms. In the northern part of the site, this soil is undoubtedly of the Ustic Torrifluvents type. These soils can range from a rather rich clay loam to a stony gravel derived from the erosion of the higher slopes. Wide variations in soil texture, depth, and structure can occur over a distance of a few feet. In the southern portion of the area, where the valleys tend to be much broader than in the northern portion of the site, the soil is generally a clay to clay loam texture. The soils are mostly of the Manzanola and Heldt types, but in places where gravels and sands from the higher slopes have been mixed the soil • page 5 of 7 Exhibit I