9417

• UCREFRP Catalog Number: 9417
• Author: U.S. Department of the Interior.
• Title: Final Environmental Assessment
• USFW Year: 1998.
• USFW - Doc Type: Acquisition and Enhancement of Floodplain Habitats along the Upper Colorado, Green, and Gunnison Rivers as part of the Recovery Program for Endangered Colorado River Fishes.
• Copyright Material: NO

A. Environmental Commitments ....'..,.......,..,.."""""...., A - 1
B. Glossary of Terms Used In This EA "........,.......',.,..,.,..,. B-1
C. References ,..",........'"",...""...."",.....",",.,' C - 1
D. Common and Scientific Names of Plants and Animals That are Not
Threatened Or Endangered Which Are Mentioned In This EA .,........ D - 1
E. Federally-Listed Threatened and Endangere,d Species
Occurring in Colorado . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. E - 1
F. Federally-Listed Threatened and Endangered Species
Occurring in Utah .............................................. F - 1
G. Background Information On Movement and Habitat Use By
Razorback Sucker and Colorado Squawfish ........................ G - 1
H. List of Piscivorous Birds That Occur Along the Upper Colorado and
Gunnison Rivers Whose Diet Contains a High Percentage of Fish ,.'.... H - 1
I. List of Preparers .....................................,......... I - 1

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Appendices

Figures

Figure 1-1. Upper Colorado River Basin Endangered Fish Species. . . . . . . . . . . . . . . . , . . . . 1-1
Figure 1-2. Endangered Fish Distribution Map ........................... .., 1-2
Figure 1-3. Colorado River System ............................ . . . . . . . . . 1-4
Figure 1-4. Habitat Types ............................. ................ 1-5
Figure 1-5. Green River System ......................... ................ 1-5
Figure 3-1. Quality Floodplain Areas In the Upper Colorado River Basin ..,.........,..., 3-1
Figure 3-2. Cross-section of a River Channel in Quality Areas . . . . . . . . . . . . . .. ... 3-2
Figure 3-3. Cross-section of River Channel and Floodplains in Narrow Canyon Reaches .. . . 3-2
Figure 3-5. Population Growth by County .............................. ... 3-2
Figure 3-6, Gravel Pit Pond Distribution by River. . . . . . . . . . . . .. ................ 3-7

Tables

Table 2-1. Criteria for Evaluating Alternatives for Providing and Enhancing Floodplain Habitat 2-1
Table 3-1. Summary of Potential Impacts .............................. .. 3-11