Closures and Missile Tests
Upcoming Missile Tests: From time to time the missile range that surrounds us performs missile testing that may require the closure of the park or Highway 70. Please follow the link below for up to date information on closures More »
New Monument Hours
The monument currently opens at 8 a.m. and closes roughly 1 hour after sunset. More »
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Rio Grande cottonwood trees grow throughout the dune field. Their roots tap into the shallow water table which lies just three feet below the surface. In the fall (late October-early November) their leaves turn golden, adding splashes of color throughout the white sands.
Did You Know?
Only the top few inches of the gypsum dunes are made of loose sand. Rainwater falling on the dunes dissolves some of the gypsum and cements the sand grains together, creating a crude form of plaster of Paris. This makes the white sand dunes easy to walk on.