Ridgeline Trail Half Marathon
ElevationAscent: 1,542' 470 m
Descent: -1,529' -466 m
High: 6,613' 2,016 m
Low: 6,387' 1,947 m
GradeAvg Grade: 4% (2°)
Max Grade: 21% (12°)
Current trail conditions
Popular runs nearby
Ridgeline Trail 10K
6.3 mi 10.2 km • Loop • 668 ft Ascent 203.64 m Ascent
Singletrack Castle Rock, CO( 2 )
Ridgeline Trail 50K
32.5 mi 52.2 km • Out and Back • 3,021 ft Ascent 920.83 m Ascent
Singletrack Castle Rock, CO( 1 )
Rock Park Loop
1.4 mi 2.2 km • Loop • 302 ft Ascent 92.06 m Ascent
Singletrack Castle Rock, CO( 14 )
Greenland Trail 8M
8.2 mi 13.3 km • Point to Point • 456 ft Ascent 139 m Ascent
Singletrack Woodmoor, CO( 1 )
Highline Canal Trail
61.3 mi 98.7 km • Point to Point • 369 ft Ascent 112.41 m Ascent
Singletrack Roxborough Park, CO( 11 )
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“The Ridgeline Trail Race Half Marathon is a trail race in Castle Rock, CO.”— Derek Griffiths
Featured Race - Oct 6, 2018
Starting near the amphitheater at PS Miller Park, the course travels along the Yellow and Purple trails before crossing a pedestrian bridge to the Ridgeline Open Space. Here, runners will circumnavigate the perimeter of the Rigeline Trail counterclockwise before returning to the pedestrian bridge. Once back in PS Miller Park, runners will continue on the Yellow Trail. Half Marathon and 12K (7.5M) runners will finish at the start line while 50K runners will get to experience the red and green trails within PS Miller Park. The 50K runners will then run a full second loop of the course.
The entire course is run on dirt single and doubletrack trails. The Ridgeline Trail 50K, Half Marathon and 12K is a challenging course with nearly 3,500′ of climbing in the 50K, 1,400′ of elevation change in the half marathon and 800′ of elevation change in the 12K. There will be 11 aid stations in the 50K, six aid stations in the half marathon and two aid stations in the 12K. Each aid station will provide Gatorade, water and gels. 50K runners will also find a variety of food items, including pretzels, fruit strips, Kashi bars, and potato chips.
The race course will showcase the newly constructed trails in Phillip S Miller Park and the single and doubletrack trails at the adjacent Ridgeline Open Space. Don’t forget to take in the impressive views of the surrounding buttes and the scenic views of Castle Rock as the trail twists and winds over the flowing race course. If you have any energy left after your race, you can climb Challenge Hill, a 200-step staircase on the hillside near the finish line.
Land Manager: Town of Castle Rock, CO - Parks, Open Space and Trails