Course map, elevation profile & surface
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Follow the route over 3D terrain, mile by mile.
Climbs
2 climbs · 1,440 ft totalbiggest firstElevation gain, measured two ways
| Source | Gain | vs lidar |
|---|---|---|
| Course file (GPX) | 2,726ft | +8% |
| USGS lidar, 1 m | 2,523ft | reference |
They differ because a GPS file picks up noise on every wiggle and often takes its heights from a coarse terrain model, while lidar maps the ground itself to about a metre. We sampled this route every 98 ft against USGS 3DEP and counted each rise of 10 ft or more, on Oct 23, 2026. The planner still uses the course file.
Aid stations as published on the course file
| Aid station | Mile | km |
|---|---|---|
| A Black Mountain Ranch Aid Station | 7.8 | 12.5 |
| A Gliderport Aid Station | 10.4 | 16.8 |
| A Summit Aid Station | 13.7 | 22.1 |
Badge colours match the markers on the map above — always confirm locations and cutoffs with the race organizer.
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About this course
Black Mountain Trail Races 25K covers 16.0 mi (25.8 km) with 2,726 ft of elevation gain through California, United States. That is about 170 ft per mile of climbing, and 2,727 ft of descent. The course tops out at 1,556 ft and bottoms out at 619 ft. The surface is 64% trail, 32% gravel and 3% paved. There are 3 aid stations on course; the longest stretch between aid is 7.8 mi. The profile has 2 sustained climbs; the biggest is the climb to Summit Aid Station, +891 ft over 2.8 mi at 6.0% on average (steepest stretch 21%). The interactive map above shows the full route with its elevation profile and aid stations, built from the course's GPS file.
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Course history
- Jun 20, 2026Added to the catalog
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