DirectionsTopo MapTrip ReportsPhotosGPS
National Forest Development Road 1640 is a hiking, biking, and horse trail in Grant County, Oregon. It is within Malheur National Forest. It is 2.9 miles long and begins at 5,322 feet altitude. Traveling the entire trail is 5.7 miles with a total elevation gain of 605 feet.
Sign in/up to upload photos.