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Thorne

CO

Historical data for the Thorne trail at Keystone.

Current Status

Closed

Difficulty

Blue

Section

Bergman

Status Timeline

Current Season

10/26/20253/24/2026

Prior Seasons

11/14/20244/5/2025
12/18/20234/13/2024
Snowfall(241 days)
Closed(21)
Open(15)
Groomed(19)
Unknown(1)

Recent Changes

Mar 24, 2026, 06:31 AMLatest
Groomed→Closed
Jan 2, 2026, 08:00 AM
Open→Groomed
Jan 1, 2026, 01:00 PM
Closed→Open
Sep 29, 2025, 02:30 AM
Closed

Statistics

Trail Season Length82 days

Number of Days in Each State

Closed
242 days
Open
1 day
Hold
0 days
Groomed
81 days
Unknown
0 days