Naches Peak Ski Circumnavigation + Seymour Peak via East Ridge (Naches Mountains, WA) Jim Brisbine·June 13, 2010Trip Date: June 13, 2010 Naches Peak Ski Circumnavigation & Seymour Peak Climb Naches FlatsDewey Lake SaddleDewey–Seymour SaddleSeymour...Naches MountainsSnow Tours in Southern WA CascadesSeymour Peak·259 views