Only a few places in lower elevations with intermittent streams to fill water.
The William O. Douglas Wilderness is a designated area in central Washington State between the U.S. Route 12 and State Route 410. It shares a boundary with the Mt. Rainier National Park on the west, Norse Peak Wilderness lies to the north, and Goat Rocks Wilderness to the south. Approximately 25 miles (40 km) of the Pacific Crest Trail travel within its boundaries. ~Wikipedia
Another difficult hike with steady elevation gain.