• Sunset at Lake Mead's Boulder Basin

    Lake Mead

    National Recreation Area AZ,NV

There are park alerts in effect.
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  • Important Notice to Mariners

    Lake Mead water elevations will be declining throughout the summer. Before launching, check lake levels, launch ramp conditions, changes to Aids to Navigation and weather conditions by clicking on More »

  • Areas of Park Impacted by Storm Damage

    Strong storms rolled through Lake Mead National Recreation Area Aug. 3-4, causing damage to some areas of the park. Crews are working to restore the below locations. Debris may be present in other areas of the park, as well, especially in the backcountry. More »

  • Goldstrike Canyon, Arizona Hot Spring Trails Temporarily Closed

    A temporary emergency closure is in place for Goldstrike Canyon and Arizona Hot Spring trails within Lake Mead National Recreation Area, beginning Aug. 1. This closure includes National Park Service and Bureau of Reclamation lands. More »

  • Summer Fire Rules in Effect

    Lake Mead NRA is now enforcing summer fire restrictions. Please click 'more' to learn about the rules for fire during our hot, dry season. More »

Divers Help Invited 11-07

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Date: March 2, 2007
Contact: Roxanne Dey, 702.293.8947

Recreational scuba divers are invited to report their sightings of quagga and zebra mussels to a website collecting information on the spread of these invasive equipment-fouling bivalves west of the Mississippi River.

The 100th Meridian Initiative, an interagency clearing house working to stop the spread of nuisance aquatic species in the United States, has established a “diver reports” section on its webpage, http://www.100thMeridian.org.  Divers are invited to report GPS coordinates and/or locations, depths, and density.

Kent Turner, Chief of Resources Management at Lake Mead National Recreation Area, said that input from the recreational diving community will be invaluable in determining the extent of mussel infestation in the Colorado River basin.  If we receive a quagga report from scuba divers, we can use our limited diving resources to make an assessment of the extent of the infestation Turner adds. 

Divers will also find descriptive data and photographs on the 100th Meridian webpage where a clear distinction is made quagga/zebra mussels and the less troublesome Asian clam, a similar freshwater species. 

Divers are also advised to take precautions in decontaminating their dive equipment after diving in infested waters in order to prevent accidental spread to other waters.  Information on decontamination of dive equipment can be found at the 100th Meridian website, www.100thmeridian.org, and a companion website, www.protectyourwaters.org.

Did You Know?

A Bighorn Sheep

Desert Bighorn sheep live in matriarchal societies. A dominant female leads a herd, which for much of the year consists primarily of ewes and their lambs. The rams tend to stay together in bachelor groups until the summer breeding season.