Geology and geography of the Zion Park region, Utah and ArizonaHerbert E. Gregory · First published 1950Open the Tome
Notes on a geological traverse from Mohave, California, to the mouth of San Juan River, UtahHerbert E. Gregory · First published 1923Open the Tome
The geology and geography of the Paunsaugunt region, UtahHerbert E. Gregory · First published 1951Open the Tome
The Navajo Country: A Geographic and Hydrographic Reconnaissance of Parts of ..Herbert E. Gregory · First published 1916Open the Tome
The geology and geography of the Paunsaugunt region, UtahHerbert E. Gregory · First published 1951Open the Tome
Ground water in the Hartford, Stamford, Salisbury, Willimantic and Saybrook areas, ConnecticutHerbert E. Gregory · First published 1916Open the Tome
