Dutch Miller Gap is a destination along the Middle Fork to Salmon La Sac Traverse, or a destination in and of itself. It's a lovely spot, but takes a drive on rough road and a long hike to access.
From the parking area, equestrians, cyclists, and hikers travel along a closed portion of Forest Service Road 56 following the north side of the Middle Fork Snoqualmie River. (Alternately, you can cross the Middle Fork Snoqualmie and hike on the Middle Fork trail on the south side of the river. This option is more scenic than the road walk, but about a mile and a quarter longer.)
After 4.5 miles on the road, arrive at a junction with Goldmyer Hot Springs (reservations required) and cross a foot bridge to the south side of the Middle Fork River. From here the route climbs steeply to Hardscrabble Horse Camp with open views of rockslides, waterfalls and jagged peaks. At about 7.7 miles the road/trail ends at the horse camp. Bicycles are not allowed beyond this point; the trail goes into the Alpine Lakes Wilderness after crossing Hardscrabble Creek.
From here, the route gently ascends through the Middle Fork Valley, winding through forests and traversing open avalanche slopes with wildflowers or wading through deep bracken fern, depending on the season.
The avalanche slopes provide excellent views of Burntboot Peak, Overcoat Peak and Iron Cap Mountain. A short, steep stretch of trail takes you a quarter mile to the upper valley where the forest thins to park-like stands with many large open areas and lots of huckleberries in August and September.
13 miles in, you'll cross a steel bridge over the Middle Fork at Pedro Camp. Here, Reflections of Bear’s Breast and Summit Chief Mountains grace a quiet pool of the Middle Fork River. From the bridge, wander through heather and huckleberry meadows to the junction with the Williams Lake trail at 14.2 miles. Turning left here will deliver you to the lake in one mile.
The Gap itself is one mile further on, through high open meadows, until you arrive at your destination (5,000 feet of elevation). From here it is possible to do a thru-hike, loops, or simply turn around and head back the way you came.