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Reservoir (Dam) Locations <br />These coverages contain dam locations and related engineering data. This information is populated for <br />the Western Slope of Colorado from the dam network that consists of dBase formatted files. The dam's <br />core network is from the Division of Water Resources, State Engineer's Office in Greeley. <br />Transbasin Diversion Input Locations and Diversion Structure Locations <br />These data were received in ASCII format with the point location of diversion structures within the <br />Water Division 4 from the State Engineer?s Office. <br />Stream Gage Locations <br />This coverage is for the Division of Water Resources water gages on the Western Slope. This coverage <br />was created by generating a coverage from DMS (Degrees/Minutes/ Seconds) that were determined by <br />State Engineer?s Office field personnel using paper 7.5-minute quads. Original data were provided by <br />the State Engineer?s Office in , an ARC/INFO export file. <br />dwrgages.e00 <br />Climate and Weather Station Locations <br />These coverages contain UTM point locations for weather stations. Point locations were provided by <br />RTi in latitude/longitude and then converted to UTM coordinates. Coverage includes all weather stations <br />contained in the historical database. <br />Isohyetal Map of Precipitation <br />These data are from an isohyetal map detailing Colorado's average annual precipitation from 1951-1980. <br />This map was digitized from a 1:500,000 resolution map published by the Colorado Climate Center. <br />Procedures and data used to prepare this map are contained in the report Analysis of Colorado Average <br />Annual Precipitation for the 1951-1980 Period (Colorado Climate Report 84-4), published by the <br />Colorado Climate Center. The arc attribute table (AAT) file contains the original information assigned <br />to lines. The polygon attribute table (PAT) contains the precipitation value assigned to polygons that are <br />estimated as the middle value between limiting lines. <br />Soils <br />Data included are soil texture and available water capacity (AWC). The Soil Conservation Service <br />(SCS) identifies AWC for soil types mapped in the field as part of the National Cooperative Soil Survey. <br />Spatial data for soils were collected through the Soils Department at Colorado State University. This is <br />part of the State Soil Geographic Database (STATSGO) data produced by the SCS. The soil data were <br />imported into ARC/INFO and then exported into GRASS: ? ? (100X100 meters cell size) and <br />soil100k <br />? ? (50X50 meters cell size). These data and additional information about soil <br />soil100k_50grid <br />characteristics, location, and extent, are compiled and stored by the SCS in the computerized STATSGO <br />using 1:250,000 resolution. STATSGO information is available for many of the areas being included for <br />estimating consumptive use. <br />5 <br />A275 01.08.95 1.06-3 Lange <br />