Skip Navigation


  • 2013 Junior Duck Stamp Best of Show

    Wyoming Jr. Duck Stamp Program soars!

    K-12 students, submit your artwork up until the mid-March deadline! Here is the 2013 Best of Show painted by 12 year old, Bailey Schupp.

    Wyoming Junior Duck Stamp Program

Refuge Closed

Mortenson Lake NWR Is Closed To The Public

Due to the endangered status of the Wyoming toad the refuge is closed to public use.

About the Complex

Arapaho NWR Complex

Mortenson Lake National Wildlife Refuge is part of a Refuge complex that includes one refuge in Colorado and four refuges in southern Wyoming.

Mortenson Lake is managed as part of the Arapaho NWR Complex.

Learn more about the complex 

About the NWRS

National Wildlife Refuge System


The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America’s fish, wildlife, and plants.

Learn more about the NWRS  

Follow NWRS Online


Wyoming Toad

  • The Wyoming Toad

    Captive Wyoming Toad 160x

    The Wyoming toad was once a common sight in the Laramie Plains but in the mid 1970's populations began to decline and the toad was listed as endangered in 1984.

    Learn more about the Wyoming toad
  • Partnership Efforts Important for Wyoming Toad

    Science-driven partnership efforts are turning the tide for the endangered Wyoming toad. Learn more about this on page 18 of the Fall/Winter 2014 Fish and Wildlife News.

    Fall/Winter 2014 Fish and Wildlife News
  • Other Lakes Close by

    Although Mortenson Lake restricts public access to protect the Wyoming toad population, there are other lakes close by , such as Meeboer Lake, Gelatt Lake, Twin Buttes Lake and Lake Hattie Reservoir, which do not. In fact, Meeboer Lake is so close to Mortenson that you might want to keep your eyes peeled for a Wyoming toad sighting! It hasn't happened yet so be sure to let us know if you are the lucky first.

    Public Access Areas in Wyoming
Page Photo Credits — All photos courtesy of USFWS unless otherwise noted.
Last Updated: Jan 22, 2015
Return to main navigation