Image: Keyhole Sink Restoration (2)

Description: Johannes Loubser (left) uses a Munsell Chart to document the natural colors of the lava flow at the Keyhole Sink Petroglyphs. Please give credit to: U.S. Forest Service, Southwestern Region, Kaibab National Forest.
Title: Keyhole Sink Restoration (2)
Credit: Flickr: Keyhole Sink Restoration
Author: Kaibab National Forest
Permission: This image, which was originally posted to Flickr, was uploaded to Commons using Flickr upload bot on 6 March 2011, 13:03 by High Contrast. On that date, it was confirmed to be licensed under the terms of the license indicated. This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license. You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original. https://creativecommons.org/licenses/by-sa/2.0 CC BY-SA 2.0 Creative Commons Attribution-Share Alike 2.0 truetrue Public domainPublic domainfalsefalse This image is a work of the Forest Service of the United States Department of Agriculture. As a work of the U.S. federal government, the image is in the public domain.
Usage Terms: Public domain
License: Public domain
Attribution Required?: No