Digital geospatial datasets in support of hydrologic investigations of the Colorado Front Range Infrastructure Resources Project

The U.S. Geological Survey developed this dataset as part of the Colorado Front Range Infrastructure Resources Project (FRIRP). One goal of the FRIRP was to provide information on the availability of those hydrogeologic resources that are either critical to maintaining infrastructure along the northern Front Range or that may become less available because of urban expansion in the northern Front Range. This dataset extends from the Boulder-Jefferson County line on the south, to the middle of Larimer and Weld Counties on the North. On the west, this dataset is bounded by the approximate mountain front of the Front Range of the Rocky Mountains; on the east, by an arbitrary north-south line extending through a point about 6.5 kilometers east of Greeley. This digital geospatial dataset consists of digitized water-level-elevation contours.

美国地质调查局（U.S. Geological Survey）作为科罗拉多前缘山脉基础设施资源项目（Colorado Front Range Infrastructure Resources Project, FRIRP）的组成部分，开发了本数据集。该项目的目标之一是提供相关信息，以说明两类水文地质资源的可获取性：一类是对科罗拉多北部前缘山脉沿线基础设施维护至关重要的资源，另一类是因该区域城市扩张而可能出现可获取性下降的资源。本数据集的南部边界为博尔德-杰斐逊县界，北部边界延伸至拉里默县与韦尔德县的中部区域；西部以落基山脉前缘山脉大致的山麓线为界，东部则以一条穿过格里利以东约6.5千米处的任意南北向直线为界。本数字地理空间数据集由数字化的水位高程等值线构成。