Trombetta Canyon Natural Area Preserve

Trombetta Canyon NAP provide habitat for two rare plant species.
The limestone cliffs of the 760-acre Trombetta Canyon NAP provide habitat for two rare plant species, yellow mountain avens and Steller’s rockbrake. The site includes extensive scrub-shrub and emergent wetlands at its lower end, providing habitat for a third rare plant, sage willow. Trombetta Canyon is isolated from disturbance by its location and topography, and offers protected habitat for a variety of other organisms—particularly those that may be adapted to limestone substrates.
Features Protected: Yellow mountain avens, Steller’s rockbrake, sage willow, western hemlock/wild sarsaparilla forest community, Douglas-fir/mallow ninebark forest community, Douglas fir/mallow ninebark/twinflower forest community, calciferous wetland, low elevation freshwater wetland.
Ecoregion: Canadian Rockies (Stevens County) 


Public and private universities, other research institutions and individual researchers may contact DNR to propose a research project at the site. If you are interested in pursuing research at Trombetta Canyon NAP, please contact David Wilderman, natural areas ecologist, at  


Currently, no formal educational programs are available at Trombetta Canyon NAP. The site is not ADA accessible and facilities are not available. For more information, contact the DNR Northeast Region natural areas manager.