Total Miles


1,497.24 ft


0.5 Hours

Technical Rating



Best Time

Fall, Summer, Spring, Winter

Trail Overview

Backdoor is one of the more intermediate trails in the South Hills Trail System because it has some moderate rock crawling. It starts at Lower Sugarloaf and goes along a fence line with minimal rocks to intersect with Sidewinder. Then it goes along several canyon rims with views down to the valley below, with several rock slab obstacles. The trail surface is embedded slab rock and dirt with a couple of bigger slab rock/boulders with one-foot high drop-offs or step-ups. All are moderate obstacles and not too difficult. The rim sections are cool because you are on the edge of the hillside with mild exposure on a pretty narrow trail. This trail doesn't have too tight of turns, it lightly curves or goes straight, but there is lots of rock in the trail the entire way. There's slab rock, big rogue rocks in the trail, and a rock pinch. There is a trail sign to go right at the end which takes you to the intersection with Upper Sugarloaf. This trail has some of the more unique features out of any in this trail system and is definitely a fun one to ride when visiting the South Hills.


This is an intermediate trail due to rock obstacles and tight twisty turns.

Technical Rating


Status Reports

There are no status reports yet for this trail.

Access Description

The South Hills Single Track Trails near Twin Falls, Idaho are accessed off of Indian Spring Road with several staging areas and camping spots on BLM land. The trail system has over 40 miles of motorized trails varying in difficulty that can all be ridden over the course of a day or two, varying from fast sage brush single track to more difficult rock crawling. This area will be very hot in the summer, so is best in spring and fall. You'll likely see mountain bikers on these shared-use trails.

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