Unicorn Peak + Thea Foss Peak + The Castle + Middle Tatoosh Traverse (Tatoosh Range, WA) Jim Brisbine·July 24, 2016Trip Date: July 23-24, 2016 Unicorn Peak Climbing Trip & Middle Tatoosh Traverse: Unicorn Col to Pinnacle–Plummer Saddle...Southern WA CascadesTatoosh RangeTraverses & Loops (Alpine)Castle, The (Tatoosh)thea foss peakunicorn peak·466 views