Pacific fisher trying to grab a chicken dinner from the bait box

Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake and Water and information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted.  For more information, please see

Pacific fisher on a tree looking into a bait box

Detailed Description

USGS scientists are documenting the distribution of three mid-sized mammalian carnivores – or mesocarnivores –in the Klamath Network Parks using remote cameras and hair snares. Little is known about the status of Pacific fishers, Pacific martens, and Sierra Nevada red foxes living in the Klamath Network, which include Crater Lake National Park, Lassen Volcanic National Park, Lava Beds National Monument, Oregon Caves National Monument, and Whiskeytown National Recreation Area. The results will provide baseline information on mesocarnivore distribution, allow researchers to determine probability of their occurrence, and help assess whether visitor-use patterns influence species’ distribution.


Image Dimensions: 3264 x 2448

Date Taken:

Location Taken: Whiskytown, CA, US