Lost River Resort is also accessible by plane, and is located within walking distance of the Lost River Airstrip. 
 

Take the Mazama exit off off Hwy 20.

Turn left onto Lost River Road (at intersection by Mazama Store)

Follow Lost River Road for 6.8 miles.

 

Please note: North Cascade Pass on Hwy. 20 is normally closed mid-November to mid-April. Check before using that route during the winter.