O’Brien Gulch is a scenic and straightforward gateway into the lower Bitterroot Range, linking Highway 28 to a network of rugged canyons and off-road routes, including the climb up South Fork Worthing. The drive eases you into the backcountry with a relatively mild trail that winds through rolling terrain and open stretches of sagebrush-covered hills.
There are no noticeable spots for setting up camp. Instead, O’Brien Gulch functions as a solid connector. This inviting entry point gradually transitions you from pavement to the high-country vistas and deeper adventures waiting farther up the trail.