A small rodent species endemic to the coastal temperate rainforests of western North America, primarily found in British Columbia, Canada, and parts of Alaska and Washington state in the United States.
Temperate rainforest ecosystems with dense understory vegetation, typically in old-growth forests at elevations ranging from sea level to 1,500 meters, characterized by high humidity and abundant ground cover
Critical seed dispersal agent, prey species for various predators, contributes to forest floor ecosystem dynamics and nutrient cycling
