DSC_0277 Published 1 June-07:00bSun, 16 Jun 2024 00:21:52 -0700000000amSun, 16 Jun 2024 00:21:52 -070024 2016 at 2560 × 1702 in Solo Trek in Mt. Rainier National Park, August 2009 The big gash in the center of the lower slopes of Mt. Rainier is the Upper Nisqually Canyon left behind by the retreating Nisqually Glacier.