From Boise, ID:

Take Highway 55 north to New Meadows, 120 miles away.
Take Highway 95 north to Sandpoint.
Schweitzer is about 450 miles from Boise.

From Calgary, AB, Canada:

Take Highway 1 west to Banff.
Take Highway 93 south to Highway 95.
Take Highway 95 south to Sandpoint.
Schweitzer is about 340 miles from Calgary.

From Missoula, MT:

Take Interstate 90 west to Coeur D'Alene.
Take Highway 95 north to Sandpoint.
Schweitzer is about 215 miles from Missoula.

From Spokane, WA:

Take Interstate 90 east to Coeur D'Alene.
Take Highway 95 north to Sandpoint.
Schweitzer is about 80 miles from Spokane.