Reconnaissance of the ground-water resources in parts of Larimer, Logan, Morgan, Sedgwick, and Weld Counties, Colorado, with a section on the chemical quality of the water

Abstract

Topography and drainage._ ____________________________________ Climate ______________________________________________________ Economy.-___________________________________________________ Geologic units and their water-bearing properties-_____________________ 7 Undifferentiated Paleozoic and Mesozoic rocks.___________________ Cretaceous System.