This trail has been fantastically maintained. The result is a lovely, if not challenging, path into the Goat Rocks Wilderness. I planned a single night trip to Heart Lake and figured the Angry Mountain Trail #90 would be a great way to avoid the crowds. The trailhead is easy to get to and parking along the road is plentiful. Once on the trail you are greeted with switchbacks. So many switchbacks. The trail climbs over 2300 feet before a slight downhill which is followed by another climb of 1000 feet. At times I thought I had lost the trail, but I just imagined where the next torturous switchback would be and that would put me right back on it. The spring at 4600 ft was flowing (even in Sept.), but that was the only water I saw before reaching Heart lake. There was no snow anywhere and this time of year only a few huckleberries left on the bushes. The trail terminates at a junction with the Lilly Basin Trail #86 which led me down to Heart lake for a quiet evening.
A great trail to experience some solace and test your switchback climbing abilities.