IMG 2868
These concave surfaces appear all along the bottom of the canyon, usually on the outside of a turn. It is unknown whether they are due to water or wind erosion, but the undercutting does suggest that this layer of rock is softer than the one above it.
DATE: 11/12/05 9:45 AM   |   CAMERA: Canon (Canon PowerShot S50)   |   ORIGINAL RESOLUTION: 2592 x 1944   |   FLASH: Flash did not fire, auto   |   EXPOSURE TIME: 1/640s   |   SHUTTER SPEED: 1/635 sec   |   METERING MODE: Center weighted average   |   APERTURE: 2.8   |   FOCAL LENGTH: 7.1mm   |   EXPOSURE MODE: Program   |   EXPOSURE BIAS: 1/-3 EV   |   ISO SETTING: Auto   |   WHITE BALANCE: Auto   |  


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