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Back to Dercum Mountain

Diamondback

CO

Historical data for the Diamondback trail at Keystone.

Current Status

Groomed

Difficulty

Black

Section

Dercum Mountain

Status Timeline

Current Season

10/26/20253/10/2026

Prior Seasons

11/14/20244/6/2025
12/18/20234/14/2024
Snowfall(224 days)
Closed(23)
Open(10)
Groomed(26)

Recent Changes

Mar 10, 2026, 01:01 PMLatest
Closed→Groomed
Mar 10, 2026, 09:01 AM
Groomed→Closed
Feb 6, 2026, 12:00 PM
Closed→Groomed
Feb 6, 2026, 09:30 AM
Groomed→Closed
Jan 17, 2026, 09:00 AM
Closed→Groomed
Jan 16, 2026, 12:30 PM
Groomed→Closed
Jan 11, 2026, 06:30 AM
Open→Groomed
Jan 8, 2026, 03:00 PM
Closed→Open
Sep 29, 2025, 02:30 AM
Closed

Statistics

Trail Season Length70 days

Number of Days in Each State

Closed
103 days
Open
3 days
Hold
0 days
Groomed
66 days
Unknown
0 days