| Nearest town | Castro Valley“100k and 50 mile races start and finish at Lake Chabot Marina in Casto Valley, California.” source |
| State | CA“100k and 50 mile races start and finish at Lake Chabot Marina in Casto Valley, California.” source |
| Country | US“100k and 50 mile races start and finish at Lake Chabot Marina in Casto Valley, California.” source |
| Race starts at | Lake Chabot Marina, Castro Valley, CA“100k and 50 mile races start and finish at Lake Chabot Marina in Casto Valley, California.” source |
| Nearest major airport | OAK“OAK | Oakland San Francisco Bay Airport | medium hub | 9.7 (measured airports table supplied with this task)” source |
| Driving distance to airport | 10.9 mi“"distance":17594” source |