| Adoption Status: NOT ADOPTED
2,674 acres (4.2 square miles)
How to get there
The Ptarmigan A roadless area is located immediately NE of
Silverthorne at the south end of the Williams Fork Mountains.
- The
Ptarmigan Trail (69) begins in Silverthorne, and passes through this area on
its way to the Williams Fork ridge in the Ptarmigan Peak Wilderness Area.
- The
unit can be also be accessed from the north by Bushee Creek Road (FS 1908).
- The
USGS 7 1/2’ quad for Ptarmigan A roadless area is Dillon.
Setting
This area is adjacent to the Ptarmigan Peak Wilderness Area
and occupies the steep slopes between Silverthorne and the wilderness boundary.
The elevation ranges from 9,300 feet to 11,500 feet and is forested with
aspens.
What’s special about it?
This area provides a buffer zone between the
heavily developed Silverthorne/I-70 area and the designated wilderness. It
provides quick access for homeowners in Silverthorne to a wild and natural
place. It is part of a major big game migration corridor that crosses I-70
where it passes through Eisenhower Tunnel. Deer and elk use this area in the
winter. The Colorado Division of Wildlife has identified Ptarmigan A RA as an
area of high habitat priority.
Potential threats
The steep terrain in this unit makes future development
unlikely.
Other info
There is an active cattle allotment within the roadless
area. Conservation groups have identified an additional 1,381 acres of roadless
land to on the north end of the USFS-recognized Ptarmigan A roadless area. This
unit is part of a 50,114 acre (78.2 square mile) roadless complex that consists
of the Ptarmigan Peak Wilderness Area, the Williams Fork roadless area (on the
Routt National Forest), the Ute Pass/Acorn Creek and Ptarmigan A roadless
areas.
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