RT @USGS: Happy Establishment Day to Petroglyph National Monument, New Mexico (#OTD 6/27/1990). Check out a geologic map of this amazing pl…
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6,952 followers
RT @USGS: Happy Establishment Day to Petroglyph National Monument, New Mexico (#OTD 6/27/1990). Check out a geologic map of this amazing pl…
3,106 followers
RT @USGS: Happy Establishment Day to Petroglyph National Monument, New Mexico (#OTD 6/27/1990). Check out a geologic map of this amazing pl…
773 followers
RT @USGS: Happy Establishment Day to Petroglyph National Monument, New Mexico (#OTD 6/27/1990). Check out a geologic map of this amazing pl…