### Geohydrology of Mesozoic rocks in the upper Colorado River basin in Arizona, Colorado, New Mexico, Utah, and Wyoming, excluding the San Juan Basin

By: Geoffrey W. FreetheyGail E. Cordy

                            https://doi.org/10.3133/pp1411C

#### Links

-                                                                                                                             Document:                                                                                                                                                                                                                                                  **Report**                                                                                                     (pdf)                                                                                                                                     
- Plates:                               - **Plate 1**                            (pdf)  Generalized stratigraphic and hydrologic correlation chart of Mesozoic rocks, Upper Colorado River Basin
  - **Plate 2**                            (pdf)  Maps showing areal extent and thickness of the Mesozoic confining units of the Upper Colorado River Basin
  - **Plate 3**                            (pdf)  Maps showing areal extent and thickness of the Mesozoic aquifers of the Upper Colorado River Basin
  - **Plate 4**                            (pdf)  Fence diagram showing relative thickness and extent of Mesozoic aquifers and confining units in the Upper Colorado River Basin
  - **Plate 5**                            (pdf)  Maps showing generalized potentiometric surface, recharge and discharge areas, and direction of water movement in teh Mesozoic rocks of the Upper Colorado River Basin
  - **Plate 6**                            (pdf)  Map showing place names of the Upper Colorado River Basin 
- Data Release:  **USGS data release**  - Digital subsurface data of Mesozoic rocks in the Upper Colorado River Basin in Wyoming, Utah, Colorado, Arizona, and New Mexico from USGS Regional Aquifer System Analysis
- NGMDB Index Page:  **National Geologic Map Database Index Page**                            (html)
- Download citation as:  RIS                         |                         Dublin                            Core

#### Abstract

The purpose of this report is to provide a quantitative analysis of the occurrence, movement, and quality of water and the hydrologic characteristics of aquifers and confining units in the Mesozoic rocks of the Upper Colorado River Basin. The analysis is regional in scope and, hence, does not address site-specific problems caused by intricate localized quality, lithologic, or structural discontinuities. The report is intended to answer questions about the lateral flow of ground water from recharge to discharge areas, its vertical movement between aquifer systems, and the general water-yielding properties of aquifers.

Because the investigation was regional in scope, analyses of recharge, ground-water movement, discharge, and storage were based on data and interpretations from the results of previous investigations and existing files from government and private sources. Analyses of hydrologic properties and water quality were based largely on the same sources but were supplemented with a small quantity of newly collected data for areas for which this type of information was lacking. 

#### Study Area

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