The way points of this bicycle route:
Start at Looney Bean coffee or Arrowhead Cycles. Take Line street west and head out of town.
Right on Red Hill
Right on Ed Powers.
Left on Sawmill
Left on Round Valley Rd
last stop for water at the elementary school before the climb
Left on Old Sherwin Grade
Old Sherwin grade turns into Lower Rock Creed Rd
Climbing begins
Left on 395
Left on Rock Creek Rd. (If you're feeling strong climb Rock Creek Rd up to Mosquito Flats. This is a great climb and you get an incredible view of Rock Creek Lake. Stop at Rock Creek Lodge for their famous pie). However you are about to do a long difficult grade from Crowley to Mammoth. What makes it difficult is the headwind that is often present.
Right on Crowley Lake Drive. Stop at Tom's Place for Water
Left on 395 at the Cal Trans Grade
Take Mammoth Lakes Exit Hwy 203 and turn left onto Minaret Rd
Left on Old Mammoth Road
Right on Sierra Nevada