||Junction Oregon Route #31 with United States Highway #97, south of La Pine, Oregon, a city in Deschutes County, Oregon. This is where Oregon Route #31 begins its southeasterly journey towards an intersection with United States Highway #395 at Valley Falls, Oregon, where it ends. This section of the guide covers from near La Pine, Oregon till Silver Lake, Oregon. Section #2 covers the remaining distance till Valley Falls, Oregon.
||Beal Road / Michael Road, These Roads connects with United States Highway #97, within Deschutes National Forest, Oregon
|Sun Forest Drive
||Sun Forest Drive, Split Rail Road,
|NFD Road 2131
||NFD Road 2131, NFD Road 770, through Deschutes National Forest, Oregon.
|NFD Road 2516
||NFD Road 2516, 2451, traverses the Winema National Forest, located adjacent to Deschutes National Forest, off Oregon Route #31,
|NFD 400 Road
||NFD 400 Road, NFD Road 457, An explosion crater called Big Hole is in Fort Rock Basin, close to Oregon Route #31, northeast of Crater Lake.
|NFD 513 Road
||NFD Road 513, NFD Road 3125, Forest Routes near Big Hole, along the Oregon Route #31, within Deschutes National Forest, in Oregon
|NFD Road 200: Hole in the Ground
||NFD Road 200, NFD Road 430/425, Hole-in-the-Ground, an explosion crater in Fort Rock Basin. The Big Hole, an older and quite eroded crater, lies west of Hole-in-the-Ground.
|NFD Road 3125: Hole in the Ground
||NFD Road 3125, to Hole-in-the-Ground, a smaller explosion crater located in Fort Rock Basin , along the Oregon Route #31 in Deschutes National Forest.
|BLM Road 6149Ao: Fort Rock
||BLM Road 6149Ao, County Road 5-11A, Fort Rock, a volcanic landmark called a tuff ring, located on an Ice age lake bed in north Lake County, Oregon, The region of Fort Rock Basin contains about 40 such tuff rings and maars. Fort Rock Cave, an archaeological site with evidences of earliest human habitation in Oregon, Fort Rock Cave is a declared National Historic Landmark.
|County Road 5-10
||County Road 5-10, Fort Rock Cave, an archaelogical site where evidences of earliest human habitation in Oregon found, Fort Rock Cave, a National Historic Landmark, located off Oregon Route #31 on the northeast. The Squaw Ridge lava field, also known as the East lava field, a young basaltic field located in Oregon. Devil's Garden Volcanic Field, a volcanic field located south east of Newberry Caldera, Oregon, Crack in the Ground, a volcanic fissure, located in the southwest corner of Four Craters Lava Field in the Deschutes National Forest, off Oregon Route #31, Four Craters Lava Field, a basaltic volcanic field, located south east of Newberry Caldera, Oregon in Oregon.
|Forest Route: Reservoir
||Forest Route, to, Lasater Reservoir,
|NFD Road 2780
||NFD Road 2780, NFD Road 7280,
|Bear Flat Road
||Bear Flat Road / County Highway 4-10, Silver Lake Road,
|Marsh Road / County Road 4-11
||Marsh Road / County Road 4-11, Silver Lake Forest Service Strip, a public airport located southwest of Silver Lake, Oregon, in Lake County, Oregon,
|Silver Lake, Oregon
||Silver Lake, Oregon, a community in Lake County, Oregon, located on Oregon Route #31. On the south lies, Red & White Flying Service Airport, a private airport. First section of the Highway Guide of Oregon Route #31 ends here.
Continued on Section #2 till the end of the Route at a Junction with United States Route #395 near Valley Falls, Oregon.