Course
A clockwise loop of roughly 14 miles around Vallecito Reservoir in the San Juan Mountains, starting on County Road 501 and crossing the top of Vallecito Dam. The surface is four miles of paved road, 3.5 miles of singletrack along the lakeshore and 6.5 miles of dirt and gravel Forest Service road, with about 1,000 feet of climbing.
Key dates
- !Entries openWed 30 Dec 2026 · in 10 weeks
- ★Race daySat 15 May 2027
About
The Vallecito Lake Heavy Half is a trail half marathon near Bayfield, Colorado, held along the shores of Vallecito Lake in the San Juan Mountains southeast of Durango. The rugged terrain and mountain scenery give the race its "heavy" name.
Save Vallecito Lake Heavy Half 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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Endure Trail Runs
Colored balls decide your loop at this 12-hour trail run
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