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r r M = M M M W = M = i M = = M M = M 4. Lower Little Snake River This drainage includes all of the Lower Little Snake River as it returns from Wyoming near County Road 4 and the state line. No perennial standing waters are known to exist in this drainage. Apart from the Little Snake River, the other stream courses are characterized as gulches, washes, and draws, are characterized as small, intermittent, and seasonal with regard to flow; and are likely to attain summer water temperatures and water quality conditions that would support only warmwater fishes, if at all, or other aquatic wildlife such as reptiles, amphibians, mollusks and crustaceans. All of these waters (337 mi) are managed for the conservation of native aquatic wildlife. The 70 mi reach of the Lower Little Snake River is known to provide important seasonal habitat for native fishes, including the endangered Colorado River squawfish and humpback chub during the spring runoff. During late summer, remnant pools maintained by groundwater flows also support fish life until surface flows return in the fall. Flows in the mainstem Little Snake River can be significant seasonally, but intermittent flows typify this reach as well during the late summer. All waters within this drainage have been classified as protected habitat with respect to whirling disease (WD) and can be stocked if necessary with WD negative fish only. (Appendix C-Table 11) 2) Emphasize management of the lower mainstem Little Snake River for populations of native and endangered fishes within the Colorado River Fishes Recovery Program. 3) Initiate baseline herptile, mollusk and crustacean inventories as agency resources permit. Recommended management strategies/options: 1) Maintain existing waters designated within the Special Management category as listed. Figure 16. Aquatic wildlife management by category in the Lower Little Snake River drainage. DRAFT - January 13, 1998 28 100% Warmwater streams Native/Unique Species