The hydrology of the coal-bearing Raton Basin of Colorado and New Mexico recently was investigated by the U.S. Geological Survey. Some of the data collected during this investigation are presented in this report. The data in this report were collected from 1977 to 1982, mainly in the watersheds of the Apishapa and Purgatoire Rivers; information from the Cucharas, Canadian, and Vermejo River watersheds also is included. The report contains records of precipitation, temperature, relative

more »

... evaporation, and wind movement at U.S. Geological Survey and U.S. Army Corps of Engineers meteorological stations, records of soil water collected by the U.S. Geological Survey, records of stream discharge and quality at U.S. Geological Survey gaging stations and miscellaneous sites, and a variety of ground-water data. The ground-water data includes records of 231 wells, springs, and mines, including 87 chemical analyses of the water, recorded water levels in 29 observation wells, results of 125 aquifer tests, and 87 logs of wells and test holes.