Decision Memo Completed

Keystone A51 Lift Replacement

White River National Forest Summit, Colorado East Zone/Dillon Ranger District

Keystone Resort is proposing replacement of the A-51 lift with a new high-speed detachable quad. Associated grading for a new top and bottom terminal area will enable better skier circulation, lift maze and milling space with the higher capacity lift

Location

A51 Lift is located on the front side of Dercum Mtn within the Keystone Resort Special Use Permit boundary.

Project timeline

1
Scoping Start
09/29/2025
2
Comment Period
09/29/2025
3
Decision
03/2026 (Estimated)
4
Implementation
07/2026 (Estimated)

NEPA / regulatory detail

Categorical Exclusion32.2 (22), 36 Cfr 220.6(E)(22)
Special AuthorityNot Applicable / Other
Notice and Comment RegulationNot Subject to Regulations
Project ActivitySpecial Use Authorizations
Keystone A51 Lift ReplacementDecision Signed Date: 03/04/2026
ForestsWhite River National Forest
DistrictsEast Zone/Dillon Ranger District
Legal Land DescriptionNot Applicable
Special use management