Fremont Quarries to Sandhill across Dumbarton
- 69.4 km
- 126 m
- 127 m
- Fremont, California, United States
27.46 miles all the way around, starting and ending in Niles.
Track
13.7 km31 %Pedestrian area
8.9 km20 %Paved
35.9 km(81 %)Unpaved
0.4 km(1 %)Asphalt
35.5 km80 %Concrete
0.4 km1 %Bathroom
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