This trail is enters the Trinity Alps Wilderness and the usual federal wilderness area regulations and restrictions apply here; 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 between November and May.
This trail heads north from the Middle Boulder Trail #5577
about 0.6 miles north of the #5577's junction with the Pacific Crest Trail. This junction is poorly signed and is easy to miss in favor of the more obvious Middle Boulder Trail. Pay attention and you'll see a tread worn in the sage brush.
After that, the route is never difficult to follow. After passing through several sage brush meadows, the trail enters dense forest as it rounds the shoulder of the ridge between the West and East Boulder Creeks and descends a wide sage brush-covered slope to its end at a junction with the East Boulder Lake Trail #5575
on the shore of East Boulder Lake.
The Boulder Tie Trail #5582 isn't a particularly interesting trail in its own right but is a highly useful connection between the two creek drainages for loop runs or backpacks.