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About Our Site - Sinks Canyon State Park

 

Sinks Canyon State Park is located in west central Wyoming just south of Lander. The park is situated in the Wind River Mountains on the middle fork of the Popo Agie River. The site is named after distinct geologic phenomena in which the Popo Agie river disappears into a limestone cavern and reappears a quarter mile down canyon in a placid pool filled with 8 - 12 lb. rainbow trout. The site has a variety of natural habitats which creates diversity of flora and fauna. The canyon provides a variety of recreational opportunities including nature studies, photography, camping, fishing, hiking, world class rock climbing and access to miles of mountain bike trails.

Partners Work to Control Cheatgrass in Sinks Canyon

LANDER, Wyo. – April 29, 2026 – Fremont County Weed and Pest District, the Wyoming Game and Fish Department, and the Bureau of Land Management plan to conduct aerial cheatgrass treatment within Sinks Canyon State Park the week of May 4-8, depending on weather conditions. Conducting cheatgrass treatments is a continuing and shared commitment to manage healthy wildlife habitat and reduce wildfire risk.


“Treating cheatgrass in Sinks Canyon State Park is a high priority for the Wyoming Game and Fish Department. The area includes crucial winter range for mule deer and provides extensive habitat for a myriad of other species. All of these species depend on native plants for forage and cover. Cheatgrass inhibits these native plants as well as increasing chances for wildfire,” stated Amy Anderson, Wyoming Game and Fish Department terrestrial habitat biologist.  

Treatments will involve spraying the herbicide indaziflam (Rejuvra) from drones. Actual spray dates will depend on weather conditions, but could begin as early as May 4. Short-duration closures in Sinks Canyon State Park will occur during application.


“Historical wildfires on the south slopes in Sinks Canyon created an opportunity for cheatgrass to dominate, risking repeat fires and continued loss of important wildlife habitat. Rejuvra treatments will improve land health, benefiting wildlife while also reducing fire risk,” said

Aaron Foster, Fremont County Weed and Pest district supervisor. 


Spray areas will be flagged and marked with signs. The public is advised to use caution and avoid spraying operations if encountered. Once the spray has dried, areas will be reopened to the public. The Sunnyside Trail will be closed during the duration of the treatment. 

For more information, please contact Fremont County Weed and Pest District Supervisor Aaron Foster at (307) 332-1052 or Sinks Canyon State Park Superintendent Jessica Moore at (307) 332-6333.


Contacts: 

Aaron Foster, (307) 332-1052; This email address is being protected from spambots. You need JavaScript enabled to view it.

Jessica Moore, (307) 332-6333; This email address is being protected from spambots. You need JavaScript enabled to view it. 

 

View more updates for Sinks Canyon State Park!

 
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Site Status
 

Attention: Water is on in the Popo Agie Campground as of May 1st, 2026. 

All campsites and the Sawmill Shelter are now reservation only - except sites 12 and 15. 

Yurts are available on the reservation system, and must be reserved 24 hours in advance. 

The Visitor Center will open on May 22nd, 2026.

 

Please Note: Water has been turned on in the Popo Agie Campground on May 1st, 2026

Yurts are availalbe year round through the reservation system. 

Campsites are reservation only 
May 1st-Sept 30th.
Sites 12 and 15 in the Popo Agie Campground are first come first-served year round.

Sawmill Shelter can be reserved through the reservation system
May 1st-Sept 30th. 

Campsites and the Sawmill Shelter are first-come first served,
Oct 1st - April 30th. 
Campsite and shelter access is weather dependent. 
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Hours
 
  • Facilities are open to the public from 6 a.m. to 10 p.m. year-round. After 10pm, all campground visitors must be staying at the campground.
  • The Visitor Center is open from 10 a.m. to 5 p.m. May 22 through September 7.

 

Map

Phone Number
 

307-332-6333 Headquarters

307-332-3077 Visitor Center (June-August) 

 
Map

 Location
 

 Sinks Canyon State Park
 3079 Sinks Canyon Rd
 Lander, WY 82520

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