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Petroglyph National Monumentimage of volcanoes and flowers
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Petroglyph National Monument
Contact Us

By Mail
Petroglyph National Monument
Attn: Visitor Services
6001 Unser Blvd. NW
Albuquerque, NM 87120

By Phone
Visitor Information
505-899-0205

By Fax

505-899-0207

By Email
e-mail us

Photo of sand avalanching  

Did You Know?
While the wind piles the sand grains into dunes, the dunes move forward under the force of gravity. As the leading edge of the dune ("slipface") gets steeper, gravity pulls an avalanche of sand down the slipface, moving the dune forward.

Last Updated: July 26, 2006 at 17:58 EST