North Fork Trinity River Access at Hobo Gulch provides put-in access to a remote 15-mile Class IV-V whitewater run through a steep granite canyon with an average gradient of 110 fpm.

The access road is approximately 15 miles from Highway 299 and can be snow-blocked during winter months (typically opening March-April).

This is an expert-only paddling destination requiring significant technical skill, with multiple portages and serious rapids; flows should ideally be between 500-1,200 cfs.