Heading into eastern Washington, take the Thorpe turnoff up to Robinson Canyon. That will take you to the L.T. Murray State Wildlife Recreation Area, a diverse group of ecosystems - creek basins lined with wildflowers, basalt cliffs, aspens and cottonwoods in beautiful meadows, and an old homestead cabin made entirely of stone.
This was one of the most enjoyable hikes we've ever done - 6 hours of hiking, a picnic lunch, sharing conversation with people on horseback,
and.....finding lots of dried elk poop, which I brought back as a gift for my garden!