The usual federal wilderness area regulations and restrictions apply here. There may also be additional wilderness-specific restrictions in force; check with the district office if in doubt. Practice Leave No Trace (LNT) backcountry skills and ethics. Camp 100 feet from fragile areas; bury human waste at least 200 feet from water, trails, and campsites. This trail is usually closed by snow from November to June.
The Cat Hill Way Trail #992 starts at a junction with the Pacific Crest Trail just north of Fourmile Lake. From there it climbs through forest to the ridge between the Buck and Blue Lake Basins. It then follows the ridge, past a signed junction with the Meadow Lake Trail #976
, around Cat Hill (6,388'), to the Blue Canyon Trailhead. Despite its running along a ridge it offers few views, mainly of Mount McLoughin immediately to the south. But by using it and the PCT, you can do a great loop in and around the Blue Lake Basin, past several wonderful lakes, and the Judge Waldo Tree historic site. Be prepared, however, for hoards of mosquitos between mid-June and early September.