Santiam Pass Scenic Byway

Starts from Sisters city and goes around a few mountains in the Cascades.
Sisters city
The route goes through Deschutes National Forest.
 
Deschutes National Forest
The Black Butte at 6,436 ft, not pictured here, is the first tall peak near the road. 

Some can be seen from Route 20.

Three Sisters altitude ranges from 10,047 ft to 10,258 ft

Three Sisters
 
Mt Washington - 7,794 ft
Three Fingered Jack - 7841 ft.

Continuing bayway