: 1 b/w negative (14.0 cm x 8.5 cm), 1 b/w negative (35 mm)
: Bird's-eye view of Rock Island Ranch (left of centre), Columbia River Narrows (centre), and Birds Landing (above centre), ca. 1910s-1930s. Snow-covered ridge between Arrow Park (Mosquito) Creek valley and Whatshan Valley at top centre. Mount Ingersoll at top left. Arrow Park and East Arrow Park at extreme left.