Big Cub Geyser; Upper Geyser Basin
http://www.nps.gov/yell/slidefile/thermalfeatures/geysers/upper/page-2.htm
1950
Watson
work of the U.S. Federal Government
Note: This only applies to works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision.
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