Saturday, July 11, 2026 Belmont, MI, USA

Trail 50k

Dirty Burg 50K Trail Run

29 days to go

50km Distance

2.5 Grit Score

Entry Level Level

Vertical Intensity 0 D+/km

Flat Hilly Mtn

This course is relatively flat and fast. Ideal for PB attempts.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

OPENFREE MAP (LIBRE)

Cannonsburg Ski Area. The course is a 10k loop including about 5.5 miles of single track trail finishing with a run up and down the ski hills.