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Mesa Series <br />Mesa Clay Loam (MIA) occurs on 0 to 2 percent slopes and occurs on top of high mesas. Mesa <br />series soils are deep, well drained and moderately fine textured. Mesa soils have a pinkish gray or <br />brown, friable, granular surface layer approximately 3- to 4-inches thick. The subsoil is moderately <br />well developed, brown or light brown, and moderately fine textured with moderate, prismatic and <br />blocky structure. Below a depth of approximately 15 to 16 inches, the substratum is very pale brown <br />or brown loam that is typically calcareous and very gravelly and cobbly. The depth to bedrock is <br />approximately 60 inches. Mesa soils are not highly susceptible to erosion. <br />Mesa Gravelly Clay Loam (MoA) occurs on 0 to 2 percent slopes and is found on old high terraces. <br />Mesa series soils are deep, well drained and moderately fine textured. Mesa soils have a pinkish gray <br />or brown, friable, granular surface layer approximately 3- to 4-inches thick. This surface layer is <br />approximately 15 to 30% gravel and cobblestones. The subsoil is moderately well developed, brown <br />or light brown, and moderately fine textured with moderate, prismatic and blocky structure. Below a <br />depth of approximately 15 to 16 inches, the substratum is very pale brown or brown loam that is <br />typically calcareous and very gravelly and cobbly. The depth to bedrock is approximately 60 inches. <br />Mesa soils are not highly susceptible to erosion. <br />Mesa gravelly clay loam, shale substratum (MsA) occurs on 0 to 2 percent slopes and is commonly <br />found at the outer edge of old terraces where thin layers of alluvial sediment overlie sedimentary rock. <br />Mesa series soils are deep, well drained and moderately fine textured. Mesa soils have a pinkish gray <br />or brown, friable, granular surface layer approximately 3- to 4-inches thick. This surface layer is <br />approximately 15 to 40% gravel and cobblestones. The subsoil is moderately well developed, brown <br />or light brown and moderately fine textured with moderate, prismatic and blocky structure. Below a <br />depth of approximately 15 to 16 inches, the substratum is very pale brown or brown loam that is <br />typically calcareous and very gravelly and cobbly. The depth to shale beds ranges from approximately <br />30 to 60 inches. Mesa soils are not highly susceptible to erosion. <br />Haldorson Sand and Gravel Mine 43 <br />