Edison Butte to Lava Lake Tr31 is a straightforward OAB ride, which also serves as the southern High Cascades 100 MTB Race segment.
The 'twin peaks' ride profile is unusual but manageable, and the terrain is moderate and steady.
Those seeking an easier ride can turn around at the 5.5mi Snowmobile #4 Tr8004 intersection (between Sheridan mountain and Kwohl butte)and spend some time winding around the extensive Edison XC Ski trail system.
The Lava Lake campground is the other TH choice, with more riding options such as the Lava Lake to Sparks Lake ride.
The west side of the trail is all singletrack, with the east side open to ORV, up to the Snowmobile #4 Tr8004 intersection. The damage to that section of trail will vary from year to year and the west side is an easier ascent.
So, enjoy the views of Broken Top, Mount Bachelor and Tumalo mountain and be ready for a long ride.
Edison Butte is also a good XC Ski trailhead.
Edison-Lava Trail 31, Metolius-Windigo Trail 99, Snowmobile #4 Tr8004, Snowmobile #40 Tr8004.3
Appaloosa Trail 13.2, Bens Trail 50, COD Trail 71, Cultus: Deer Lake Trail 6, Deschutes River Trail 2.3, Elfin Magic Trail 45, Farewell Trail 26, Flagline Access Trail 40.1, Flagline Trail 41, Flagline Tie Trail 41.1, Funner, Grand Slam Trail 44, Katsuk Pond Trail 13, Kents Trail 43, KGB Trail 72, Many Lakes Trail 15, Mrazek Trail 32, MTB Trail 51, North Fork Trail 24.2, Phils Trail 42, Quinn Creek Trail 1, Sector 16 Trail 27, Skyliners Trail 28, South Fork Trail 25, Sparks Lake Trail 4, Storm King Trail 48, Swampy Lake Trail 23, Swampy Loop Trail 23.2, Swampy-Dutchman Trail 40, Swede Ridge Trail 52, Tiddlywinks, Tumalo Creek Trail 25.1, Tumalo Ridge Trail 25.2, Voodoo Trail 46, Winopee Tie Trail 16.5
Alternating Current Trail 8062, Direct Current Trail 8061, Dynamo Trail 8066, Edison Snowshoe Trail 8093, High Voltage Trail 8063, Old Growth Trail 8067, Pondo Loop Trail 8068, Supercharger Trail 8065
Beach Campground, Devils Lake Campground, Elk Lake Campground, Lava Lake Campground, Mallard Marsh Campground, Sparks Lake Campground
Ranking consistently applied to all of the listed trails.