Main Boulder Road Fishing Access Site (FAS 298) provides hand-launch access to the Boulder River approximately 3. 5 miles south of Big Timber via Old Boulder Road, with basic amenities including a toilet and parking area.

This access point serves as a gateway to the Boulder River, a blue-ribbon trout stream characterized by bouldery terrain and fast-moving water suitable for fishing and floating.

The site offers primitive facilities typical of Montana FWP access areas, making it a straightforward entry point for anglers and paddlers accessing this scenic mountain river drainage.