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Back to Flagstaff Mountain

Boulder Bumps

UT

Historical data for the Boulder Bumps trail at Deer Valley.

Current Status

Closed

Difficulty

Blue

Section

Flagstaff Mountain

Status Timeline

Current Season

11/14/20253/29/2026

Prior Seasons

11/29/20244/5/2025
12/14/20234/27/2024
Snowfall(230 days)
Closed(8)
Groomed(5)
Unknown(1)

Recent Changes

Mar 29, 2026, 06:31 PMLatest
Groomed→Closed
Feb 12, 2026, 01:00 PM
Closed→Groomed
Feb 10, 2026, 10:00 AM
Groomed→Closed
Dec 28, 2025, 10:30 AM
Closed→Groomed
Sep 29, 2025, 02:30 AM
Closed

Statistics

Trail Season Length91 days

Number of Days in Each State

Closed
235 days
Open
0 days
Hold
0 days
Groomed
89 days
Unknown
0 days