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The Middle Fork of the Popo Agie River tumbles through snow-topped boulders in a yawning canyon before veering suddenly to the east and disappearing. 

The cave that swallows the river is the Sinks — a geologic marvel that is the centerpiece of one of Wyoming’s most popular state parks. Sinks Canyon State Park attracted more than 680,000 visitors in 2024. 

The facility where visitors can learn about the Sinks, however, is small and aging. The visitor center, built in 1972, features a small second-story exhibition space filled with taxidermied snakes and mammal skulls, area maps and souvenirs for sale. The building’s water system was damaged by a long-ago high-river event, and the bathrooms haven’t been open for at least a decade. There is no classroom for student fieldtrips, and school bus drivers have to make an awkward maneuver to exit the parking lot. 

The Sinks Canyon State Park Visitor Center, seen in December 2025. (Katie Klingsporn/WyoFile)

Wyoming State Parks has an opportunity to pursue matching grant funds to rebuild the visitor center — with a potential project budget of $5 million. And the agency is taking pains to gather public input before proceeding. 

“We don’t have a specific plan,” Carly-Ann Carruthers, planning manager for Wyoming Department of State Parks and Cultural Resources, told a room of locals on Dec. 1 in Lander. “Community feedback is vital. We want to hear from you.”

Lander residents pore over maps and diagrams on Dec. 1, 2025 as they brainstorm ideas regarding a renovated visitors center in Sinks Canyon State Park. (Katie Klingsporn/WyoFile)

This process is coming on the heels of another Sinks Canyon development proposal that did not go smoothly for Wyoming State Parks. The agency in 2023 pulled the plug on a contentious proposal to build a via ferrata in Sinks following years of backlash and debate. 

Much of the initial concern stemmed from the fact that the proposed project cliff was a nesting site for peregrine falcons. Others criticized the process, expressing dismay that they were unaware of the via ferrata until after the park’s master plan was finalized. 

Though Sinks Canyon State Park is open year-round, its visitor center closes for the winter months. Canyon walls reflect on a window beneath a closed sign in December 2025. (Katie Klingsporn/WyoFile)

This time, State Parks collaborated with a local group to host an informational meeting, and turnout was high. The crowd appeared engaged and open as people asked questions and brainstormed ways to update the visitor center to accommodate modern needs.

State Parks staff emphasized there are no current plans and the meeting was just the beginning. Ideas that were floated included relocating the building, erecting a star-gazing perch and incorporating more Indigenous history and interpretation.

Katie Klingsporn reports on outdoor recreation, public lands, education and general news for WyoFile. She’s been a journalist and editor covering the American West for 20 years. Her freelance work has...

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  1. Yes, we long to keep things as they are, as they were, as we remember. Had that emotion prevailed the current visitors center wouldn’t be here. I certainly recall a time when it wasn’t. I believe a newer, better center will be a great improvement. Especially if centered on education explaining the unique geology and hydrology of this area with emphasis on its sensitivity and fragility.

    Reply

  2. Fix the toilets, do whatever is necessary to make the existing building, safe and stop there. Do not enhance and take away from the nature which is beautiful I have been there many times do not want it changed.

    Reply
  3. Reply