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A cactus mouse is counted at the Las  Vegas Wash during annual surveys

Small mammal survey begins

A survey has begun for the rodent and shrew population along the Las Vegas Wash.

Conducted quarterly, the survey utilizes Sherman box traps and pitfall traps to target the different species of small mammals.

Past surveys of this kind took place in 2002 and 2010, identifying 12 species of small mammals.

The survey continues throughout all four seasons of 2023.

Learn more about small mammal surveys.

Where to go at the Las Vegas Wash

Clark County Wetlands Park

  • 210-acre Nature Preserve
  • Miles of trails for walking, biking, bird watching and more
  • Nature Center with 10,000 square feet of interactive displays, artwork and activities


Get Directions


Henderson Bird Viewing Preserve

  • Home to thousands of migratory and resident desert birds
  • Nine ponds available for birding
  • 3/4-mile long trail accessible by wheelchair


Get Directions

Water quality

See how the wetlands at the Wash clean the water that runs through them, filtering out harmful residues from fertilizers, oils and other contaminants that flow downstream.


Find out how we are working to replace hundreds of acres of lost wetlands vegetation through restoration efforts.


Learn how we study hundreds of birds, fish and other wildlife species at the Las Vegas Wash.

Wildlife research

Upcoming events and meetings

A family of geese walk along the shore at the Las Vegas wash
Birds stand along the shore line at the Henderson Bird Viewing Preserve
A view of wetlands at the Las Vegas Wash

Discovery Walk: Hidden Trails at the Clark County Wetlands Park

March 11, 2023, 9 - 11 a.m.

Get details.

Bird Walk at the Henderson Bird Viewing Preserve

March 26, 2023, 7 - 9 a.m.

Get details.


Administrative Study Team
April 5, 8:30 a.m.

Environmental Resources and Outreach Study Team
April 5, 10:30 a.m.

Operations Study Team
April 5, 1 p.m.

Las Vegas Wash Coordination Committee Annual Tour
April 25, 8:30 a.m.