From Lightning Lake in Manning Park, the route begins at the eastern corner of the lake, at the signpost saying "Frosty". This is the "Frosty Mountain Trail", take this trail to the east peak of Frosty Mountain, where there's another signpost saying "Elev 2408m". The FKT route is signpost to signpost to signpost. There is only one intersecting trail along the route, right at the ridge. Once gaining the rocky ridge you can see your target, Frosty Mountain, to the right. Do not take the left trail which heads downhill and away from Frosty towards an area called Windy Joe.

Le GR169 a été inauguré au printemps 2022.

Incredible tour of many alpine lakes located in the Wallowa Whitman National Forest. Starting at Wallowa Lake Trailhead head out on East Fork toward Aneroid Lake. Continue on over Polaris Pass while swinging by Frazier Lake and Glacier Lake. At Glacier Lake you get an incredible view of Eagle Cap. Moving forward climb over Glacier Pass and then descend into the Lake's Basin area where you will enjoy Moccasin Lake, Lep Lake, and finally Horseshoe Lake. Then it is a beautiful descent out of Lake's Basin back towards the Wallowa Lake Trailhead via the West Fork trail.