1. Geophysically estimated porosity of selected Paleozoic rocks in the Upper Colorado River Basin, Colorado, Utah, Wyoming, and Arizona Author/Creator: Wetherbee, Gregory A., author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading
2. Regional ground-water flow in upper and middle Paleozoic rocks in southeastern Utah and adjacent parts of Arizona, Colorado, and New Mexico Author/Creator: Weiss, Emanuel, author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading