JUNE 5, 2021

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The Sunrise to Sunset Elephant Rock course will travel counter clockwise around the beautifully engineered trails at the Philip S. Miller Park in Castle Rock, Colorado

The course is a 6.5 mile loop of flowy, playful trails with consistent terrain changes, short climbs and rewarding descents. It is approximately 90% singletrack with frequent passing zones and 10% dirt road.

Philip S. Miller Park
1375 W. Plum Creek Parkway
Castle Rock, CO

The race will start at 7:00 a.m. on Saturday, June 5 and will end at 7:00 p.m. that evening. Walk-on registrations will be accepted on Friday, June 4 from 5:00 p.m. – 9:00 p.m. and on race day from 5:30 a.m. – 6:30 a.m. We encourage all racers to arrive early. A pre-race briefing will be held at 6:45 a.m. at the start line.

Start Format

Sunrise to Sunset uses a modified Le Mans start format: All racers will start with both feet on the ground and run with their bikes to the top of the hill before mounting.