NATIONAL PARK SERVICE · news
Channelization Project to Help Protect Native Fish in Grand Canyon Completed
June 5, 2025 · Source: National Park Service
The Bureau of Reclamation and the National Park Service have completed modifications to the -12 mile slough in the Colorado River near Glen Canyon Dam removing a key spawning site for invasive smallmouth bass—a growing threat to native fish.
Read the official NPS sourceWhat Travelers Need to Know
Use the official notice to confirm the affected destination, dates and visitor arrangements before finalizing your trip.
Dates and operating conditions can change after publication. Check the park’s official visitor information for your travel date.
Traveler guidance by State & Nation Staff Writer.