View data as of
Back to Bergman

Thorne

CO

Historical data for the Thorne trail at Keystone.

Current Status

Groomed

Difficulty

Blue

Section

Bergman

Status Timeline

Current Season

10/26/20251/2/2026

Prior Seasons

11/14/20244/6/2025
12/18/20234/14/2024
Snowfall(224 days)
Closed(20)
Open(15)
Groomed(19)

Recent Changes

Jan 2, 2026, 08:00 AMLatest
Open→Groomed
Jan 1, 2026, 01:00 PM
Closed→Open
Sep 29, 2025, 02:30 AM
Closed

Statistics

Trail Season Length77 days

Number of Days in Each State

Closed
94 days
Open
1 day
Hold
0 days
Groomed
76 days
Unknown
0 days