US Forest: Willamette National Forest, Deschutes National Forest Length: 82 miles / 132.0 km Time to Allow: Two hours to drive the byway or five hours to stop at places along the way. Experience dramatic views of the snowcapped High Cascade Peaks. The panorama of lava fields and six Cascade peaks is made more striking by the contrast between the black lava and white snow. The mountains are mirrored in crystal-clear lakes, and the byway passes beautiful waterfalls, including Sahalie and Koosah Falls.