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Sinks Canyon State Park

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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, WY. 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.

Sinks Canyon State Park hosts guided cave adventure, Aug. 7-12


July 19, 2018

Contact: Jamie Simonson, 307-332-6333


            See the Popo Agie River flow underground while living the life of a spelunker during Kids Caving Extreme, a guided cave adventure exploring Sink’s Canyon State Parks's Boulder Choke Cave, Aug. 7-12.

            Tours times each day are 10 – 11:30 a.m., 1-2:30 p.m. and 3-4:30 p.m. with a limit of 10 participants per time slot. Helmets and lights are provided, however participants are encouraged to bring light gloves, old clothes and sturdy shoes. Please arrive at least 15 minutes early.

            Tours will leave on time and a caving liability form for each participant must be filled out at the Visitor Center and signed by a parent or guardian.

            The cave is visitor friendly and while there are some areas where participant will need to be on their knees, most of the cave is accessible on foot.

            The cave tours are free; however participants must be registered in advance.

            For more information, please call Sinks Canyon State Park at 307-332-6333.



Wyoming State Parks, Historic Sites & Trails
A Division of Wyoming State Parks & Cultural Resources
2301 Central Avenue, 4th Floor, Cheyenne, WY 82002





Site Status


Visitors to Sinks Canyon State Park can expect detours and short delays in various campground areas through mid-July due to pavement maintenance.

Work crews will undergo pavement maintenance and seal coat operations at the park through approximately July 13.

71 Construction of Riverton is the general contractor on this project. Funding for the project is from Wyoming State Park road maintenance funds.



  • The site is open from 6 a.m. to 10 p.m. year-round.
  • Visitors Center is open from 9 a.m. to 6 p.m. Memorial Day weekend through Labor Day.

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