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Otticial Senes llescnpnon - rv1a1v[.A1vu1,A genes GEOGRAPffiC SETTING: Landform: plains, alluvial fans, drainageways, valley side slopes, plains, or stream terraces. Slopes: 0 to 25 percent Parent material: alluvial materials derived principally from sedimentary rock Elevation: 3,600 to 6,000 feet Mean annual precipitation: 11 to 15 inches, at the type location approximately 13 inches Wettest periods: spring and early summer months. Mean annual air temperature: 49 to 54 degrees F. Frost free period: 110 to 165 days rage ~ or ~ GEOGRAPffiCALLY ASSOCIATED SOII.S: These are the competing Bacid series and the Limon series. Limon soils do not have an azgillic horizon and aze mapped below Manzanola soils on flood plains.. DRAINAGE AND PERMEABILITY: Well drained; medium to slow runoff; moderately slow to slow permeability. USE AND VEGETATION: These soils are used as rangeland and for nonirrigated and irrigated crops. Native vegetation is principally blue grama, galleta, and western wheatgrass. Dryland crops are principally wheat; alfalfa, small grains, wheat, and row crops that aze grown under irrigation. DISTRIBUTION AND EXTENT: Eastern Colorado; LRR G, MLRA 69. The series is of large extent. MLRA OFFICE RESPONSIBLE: Salina, Kansas SERIES ESTABLISHED: Pueblo Area, Colorado, 1974. REMARKS: Diagnostic horizons and features recognized in this pedon are: Particle size control section: the zone from 8 to 28 inches. (Bt and part of the Btk horizons) Ochric epipedon: the zone from 0 to 8 inches. (A and BA horizons) Argillic horizon: the zone from 8 to 30 inches. (Bt and Btk horizon) Remazks: edited by MLRA Office-5 on 1/12/2000 to include drainageways in the geographic setting paragraph. Taxonomic Version: Second Edition, 1999. National Cooperative Soil Survey U.S.A. http://ortho.ftw.nres.usda.gov/cgi-bin/osd/osdname.cgi?-P 4/29/2004