Encore - Mushroom Rock

March 26, 2016


Today, and every Saturday Earth Science Picture of the Day invites you to rediscover favorites from the past. Saturday posts feature an EPOD that was chosen by viewers like you in our monthly Viewers' Choice polls. Join us as we look back at these intriguing and captivating images.

: Nel Graham
Summary Author: Nel Graham; Jim Foster

The photo above shows a grotesque looking piece of basalt called Mushroom Rock in Death Valley, California. Its odd shape results from major temperature extremes in the valley and from thousands of years of being subjected to windblown sand and salt. Once known as the Devil's Throne, Mushroom Rock has essentially disappeared from Death Valley maps, primarily because it's been further eroded by two-legged creatures. It now stands about seven feet (2 m) tall. The rock is located less than 150 feet (46 m) from an asphalt road. In the past people have broken off small chunks for souvenirs or posed on it in groups for pictures. Note that it's against the law to take anything from a National Park. Photo taken in the spring of 2008.

Photo Details: Camera Maker: Panasonic; Camera Model: DMC-TZ4; Focal Length: 5.3mm (35mm equivalent: 41mm); Aperture: f/3.5; Exposure Time: 0.0008 s (1/1300); ISO equiv: 100; Exposure Bias: none; Metering Mode: Matrix; Exposure: Landscape Mode; White Balance: Auto; Flash Fired: No (Auto); Color Space: sRGB.