Course
Both races start and finish at the Crested Butte Nordic training area on 2nd Street in downtown Crested Butte, climbing to Green Lake and descending back to town over singletrack, double track and subdivision roads through aspen forest and meadow. The 25K takes the longer, steeper line with about 2,900 ft of gain and a high point of 10,983 ft; the 15K is more direct with around 1,600 ft.
Key dates
- ·RegistrationNot open yet
- ★Race dayJuly 2027 · date to be announced
About
The Grin & Bear It is Crested Butte's oldest trail challenge. Historically presented as a sprint to Green Lake and back, this classic event has evolved to offer a 25k Loop competition while still maintaining the traditional 15k race. Coming back for year two, we're offering a 25k mountain bike race. The bike will be technical and difficult - a great training opportunity for the Summer Grand Traverse.
Save Grin & Bear It to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Silver Rush 50 Run
Leadville's high-altitude 50-miler through old mining country
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All-Out Dog Days
Big Dry Creek Trail miles with Flatirons views
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High Lonesome 100
Crosses 12,000ft passes in the Collegiate Peaks
A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.