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Digital Maps Archives: U.S. Geological Survey--Bulletins

Last updated: February 6, 2007

Bulletin 730-C: The Shapes of Pebbles (1922)
Bulletin 735-B: Colemanite in Clark County, Nevada (1922)
Bulletin 735-I: Diamond-Bearing Peridotite in Pike County, Arkansas (1923)
Bulletin 790-A: Pedestal Rocks Formed by Differential Erosion and
Channel Erosion of the Rio Salado, Socorro County, New Mexico (1926)

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