Bosque del Oso SWA Access provides entry to a 30,000-acre wildlife area west of Weston with designated parking areas and free camping (May-November) that offer access to the South Fork Purgatoire River and its tributaries for fishing.

A valid Colorado fishing or hunting license is required for visitors 16+, and high-clearance vehicles are recommended due to rough gravel and dirt roads; note that fishing on the South Fork is prohibited from the day after Labor Day through Memorial Day weekend.