From Redding or Red Bluff the best route to Eagle Lakeis via Highway 44 across to Susanville.
From Chico or Oroville the best route to Eagle Lake is via Highway 32 to Chester, then across on Highway 36 to Susanville before turning north to the lake.
From the Reno go north on Highway 395 to Susanville, then north on 139 to Eagle Lake.
From Sacramento go north on Highway 70 and Highway 99 to Chico, then northeast on Highway 32 to Highway 36. Follow Highway 36 to Susanville, then take local roads north to Eagle Lake. An alternate route is to go to Reno and up Highway 395. Both routes are about the same about of time.