• View from Sourdough Mountain Overlook  A view looking down onto Diablo Lake. Photo Credit: NPS/Michael Silverman, 2010.

    North Cascades

    National Park Washington

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  • State Route 20 closed at Mile Post 134, Ross Dam

    After a brief closure at Newhalem due to an avalanche and unstable conditions, SR 20 has re-opened to its normal winter closure point at MP 134, Ross Dam. The highway will remain closed from Ross Dam to MP 171 (Silver Star Creek) until spring re-opening. More »

  • Ross Dam Haul Road Closure Continues

    A short segment of the Ross Dam Haul Road between the Diablo Lake suspension bridge and the tunnel remains closed to public use due to continued recovery following a March 2010 landslide. The closure will remain in effect through 2014. More »

  • Notice of planned work for the Cascade River Road, fall 2014

    Visitors planning to access the park via the Cascade River Road after Labor Day should be advised that the Park Service is planning a fall closure of this road at Eldorado Creek (3 miles before the end of the road) in order to perform permanent repairs. More »

Comments Requested on Lake Restoration Proposal

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Date: May 17, 2013
Contact: Ashley Rawhouser, 360-854-7317

May 16, 2013 - Sedro Woolley, Washington - The National Park Service is seeking comments on proposed changes to the mountain lakes restoration program at North Cascades National Park Complex.

Guided by the 2008 Mountain Lakes Fisheries Management Plan, the National Park Service has successfully removed non-native fish from mountain lakes using intensive gill netting and a piscicide (fish toxicant) known as "antimycin", and is preparing to continue restoring other mountain lakes in North Cascades National Park. However, antimycin is no longer commercially available, and all stocks have been depleted. As a replacement, the NPS is proposing to use CFT Legumine™, a liquid formulation of rotenone, to remove fish from larger lakes in North Cascades National Park where methods such as gill netting are not feasible. Rotenone has been used successfully in several national parks including Yellowstone and Yosemite to restore aquatic ecosystems, and analyses by the Environmental Protection Agency and National Park Service indicate the piscicide has environmental effects similar to antimycin.

The purpose of these efforts is to restore these naturally fishless mountain lake ecosystems, which have been harmed by stocking of non-native fish that are now over-reproducing. Monitoring has shown that native species, such as long-toed salamanders and tailed frogs, are returning to these naturally fishless lakes following fish removal.

"Considering that we had not documented amphibians in many of these lakes prior to fish removal, it is a very exciting that these species are returning so quickly to their natural habitats once the fish are gone," said North Cascades National Park Superintendent Karen Taylor-Goodrich. "It is rewarding to know that our actions now have the potential to restore these remote ecosystems to what they were prior to human stocking practices."

North Cascades National Park is soliciting public comments during a 30-day public review period that extends through June 14, 2013. During this time, comments may be submitted online via the project website or by regular mail to North Cascades National Park Complex Headquarters, 810 State Route 20, Sedro-Woolley, Washington, 98284.

Links to photos and "Frequently Asked Questions" may be found by following the same link (www.parkplanning.nps.gov/restore_sourdough) and clicking on "Open for Comment" then clicking on the link to the proposal and scrolling to the bottom of the page. 

Did You Know?

Grizzly bear track in North Cascades National Park (1989). Photo Credit: NPS/NOCA/Roger Christophersen

Grizzly bear tracks can be a reliable indicator of species? Grizzly bear and black bear forepaw tracks are distinct from one another and often times better than a photo of the bear to confirm an observation. So don't just look up, look down.