PERMFILE64166

• Permit No: C1980003
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: BASELINE WILDLIFE INVENTORY
• Section_Exhibit Name: APPENDIX H
• Media Type: D
• Archive: No

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ranges in Colorado: Greenback cutthroat trout, SaZmo
cLarkii stomias; Colorado squawfish, PtychocneiZus Zucius;
American peregrine falcon, Falco peregrirzus erzatum; and
the black-footed ferret, MusteZa rzigripes. Vone are
expected to occur on the Hayden Gulch study site.
The absence of permanent streams on the site excludes
the presence of the two endangered fish. Also, the greer.-
bac!c cutthroat is native to Eastern Slope streams in the
Platte River drainage and the squaorfish is historically
found in the large, slow-moving, turbid main channels of
the Colorado and Green Rivers. The peregrine falcon is
most often a migratory visitor to Colorado but occasionally
breeds along the mountains of the Eastern Slone. Sts
presence on the study site, which is extremely doubtful,
would probably be limited to aerial foraging during
migration. The black-footed ferret is a specially adapted
carnivore closely associated with prairie dogs. The
absence of prairie dogs in the Williams Fork Mountains
excludes the presence of this species from the study site.
In addition to the federally listed endangered species,
the Colorado Division of Wildlife hzs listed two fish
species and one bird species, with distributional ranges
in northwestern Colorado, as endangered in the state. The
fish species, bonytail chub, Gila elegarzs, and hu~epback
chub, CiZa cypicc, are .not present on or near the study
site. Historically, these fish were found 'on the Colorado
and Green sliver mainste~ns and major tributaries. The
lower Yampa River is the remaining significant habitat
in Colorado, The greater sandhill crar_e, Grus canaderzsis
tabida, is known to breed along the Yampa River in Routt
County but the study site does not provide suitable habitat
to attract this species.
The State of Colorado also lists two species in the
"Threatened" category with distributional ranges in north-
western Colorado. These species, the humpback sucker,
%yrauckerz teccnus, and Colorado River Cutthroat trout,
Salma cZarki pZeuriticus, are not present on or pea; t'~e
study site due to lack of appropriate aquatic habitat.
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