Lake Lenore Caves
August 11, 2013
Photographer: John Kupersmith; John's Web site
Summary Author: John Kupersmith
The photo above shows a view from inside one of several caves in the basalt cliffs overlooking Lake Lenore, Washington. The lake and cliffs are relatively young. They were created about 13,000 years ago, at the end of the last ice age, in a series of catastrophic floods following ruptures of the natural ice dam holding back Glacial Lake Missoula. Unlike caves in Karst topography, the Lenore Caves took shape as rushing water plucked pieces of basalt from the cliffs. These caves were used as shelters by prehistoric inhabitants of this area.
Photo details: Camera Model: Canon EOS REBEL T2i; Lens: EF-S15-85mm f/3.5-5.6 IS USM; Focal Length: 15mm; Focus Distance: Infinite; Aperture: f/8.0; Exposure Time: 0.020 s (1/50); ISO equiv: 100; Software: Adobe Photoshop Lightroom 4.4 (Macintosh).