Enter Alpine Lakes Wilderness and hike through densely shaded forest to the Dorothy Lake outlet in approximately 1.5 miles. Follow the lake’s eastern edge for another two miles to the lake’s inlet. Climb over a steep ridge into the Snoqualmie Ranger District. Continue to Bear and Deer lakes, about one mile from the Dorothy Lake inlet. Dorothy Lake Trail ends 4.5 miles from the trailhead at Snoqualmie Lake and continues to Taylor River Road off the Interstate-90 corridor on Snoqualmie Lake Trail 1002.
From Skykomish, WA take US Highway 2 west for about 3 miles to Old Cascade Highway, at approximately milepost 46. Turn south on Old Cascade Highway for one mile then turn south onto Miller River Road (FS Road #6410). Continue on #6410 for 9.5 miles to the road’s end at the trailhead.