Canyons are inherently risky. Flash floods occur without notice on sunny days. Technical skills & surrounding topography knowledge required yet does not eliminate risk.
Overview: Located adjacent to the "Rock Creek Cabin" hike description and passing by this historic late 19th century log cabin, this seldom visited, remote, heavy vegetation-riparian canyon with some Class 1 & 2 rock climbing for this hike description's ~.50ml "one way" distance up canyon could possibly be navigated to its 2.4 mile upper end at its intersection with old abandoned ranching road FR1941.
Check out the Triplogs.