North Fork Boise River

Status
Established
Year Established
1996

Location

State
Idaho
National Forest Regions
Intermountain Region (R4)

43.75, -115.62

North Fork Boise River Research Natural Area

Ecological and Physical Description

Size
876ac (355ha)
Elevation Range
4,000' (1,219m) - 6,000' (1,829m)
Primary Features

The RNA encompasses a cross-section of the North Fork Boise River Canyon, four miles upstream from its confluence with the Middle Fork. The terrain is characterized by extremely steep slopes formed in easily eroded batholith granitics with many cliffs and precipices.  Vegetation is primarily Douglas-fir (Pseudotsuga menziesii) forest in a variety of successional stages. Large inclusions of bluebunch wheatgrass (Agropyron spicatwn) grassland occupy gentler slopes with south aspects. There are also localized occurences of bittercherry/bluebunch wheatgrass (Prunus emarginata/Agropyron spicatum) shrub type

Last updated February 2, 2023