Version history for Voichick, Nicholas, and Wright, Scott A., 2007, Water- temperature data for the Colorado River and tributaries between Glen Canyon Dam and Spencer Canyon, northern Arizona, 1988-2005: U.S. Geological Survey Data Series 251 [available on the World Wide Web at URL http://pubs.usgs.gov/ds/2007/251/ ]. Version 1.0 March 26, 2007 Initial release online at http://pubs.usgs.gov/ds/2007/251/