Bolinas or Bust (CA)

Marin County, California, United States

40.5 miles (65.2 km) · 5,800 ft elevation gain · Point to Point · trail · Route

Bolinas or Bust (CA) is a 40.5 mile point-to-point route located in Marin County, California, United States. The route climbs 5,800 feet and descends 5,745 feet. The longest climb spans 5.6 miles with 1,156 feet of gain. Elevation gain averages 147 feet per mile. 73% of the route can be run, with walking required on steeper grades. Surface conditions are primarily trail. The course features very hilly terrain. The course difficulty of 9.4 puts it in the top 38.62% of challenging routes at this distance. This route serves both trail runners training for ultras and hikers exploring California.