Mark F. Meier, 1950. Heap Steep Glacier, Wind River Range, WY.
From Meier, Mark F.. "Glaciers of the Gannett Peak-Fremont Peak Area, Wyoming." MS (Master of Science) thesis, State University of Iowa, 1951. Fig. 32, p. 83. Original caption: "Heap Steep Glacier, from the top of the bedrock knob in the center of the large cirque. Note the straight firn line, the curved dirt bands, the large bergschrund, the moraine emerging beneath the terminus, and the large, compound Little Ice Age terminal moraine. Heap Steep Peak to the right and Sunrise Peak to the left in the background." Brightness, contrast, and structure adjusted in Lightroom and Silver Efex Pro 2.