History of Rim Drive, Crater Lake National Park
Route 6 — Grayback Road
This one lane secondary road averages just 12′ wide over the 4.4 miles between Lost Creek Campground and the Vidae Falls Picnic Area, with the latter located just a quarter mile below Rim Drive. It is presently unsurfaced, though the remnants of past oil treatment can be seen in several places. Circulation on the Grayback Road is only in one direction (west), with the surface and curvature such that few vehicles can attain speeds greater than 35 miles per hour for even short distances.
A lodgepole pine forest dominating Lost Creek Campground quickly gives way to mountain hemlock and Shasta red fir as motorists cross over Lost Creek and begin climbing Grayback Ridge. They also cross Wheeler Creek (dry during summer) in less than a mile and have to negotiate several curves at grade before reaching points where Sun Creek Canyon, Crater Peak, and much of the upper Klamath Basin can be seen after 2.5 miles of travel. The descent toward Sun Meadow remains almost entirely in the subalpine forest, with limited views of the opening attainable where the road terminates at the picnic area.