Silverton Alpine Marathon
Race Day Weather
Cool start, warming finish
Runners will face a cool start at 51°F, rising to 70°F by the finish. Light winds from the SW will be a non-factor, but humidity will remain moderate. The toughest sections are between miles 13-22 with crosswinds, while a tailwind will assist runners from miles 7-12. Adjust pacing conservatively to account for the temperature increase, especially on the significant climb from mile 8 to 16.
This course climbs 3,537 ft to its high point and back, so we look at it at 2 points, not just the start line. In a typical year, at 9:00/mi, you start at 51° and finish around 10:55 AM in 70°.
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Race Info
Get ready to experience an epic trail adventure! The 50K and Marathon (~26.7 miles) loop takes you through the heart of the San Juan Mountains, following the historic Alpine Loop jeep roads. Along the way, you’ll pass through ghost mining towns such as Howardsville, Eureka, Animas Forks, and Gladstone. The course’s high point is California Pass, sitting at a breathtaking 12,930 feet! Source
