at Rock Creek Ranch, Idaho, in spring.
Lupine blanket at Rock Creek Ranch, Idaho, in spring. © John Finnell

Places We Protect

Rinker Rock Creek Ranch


Critical habitat for wildlife and a hub for learning in the heart of southern Idaho.

In 2016, Rinker Rock Creek Ranch became a center for science and education through a unique collaboration between the University of Idaho, The Nature Conservancy and the Wood River Land Trust.

The three groups signed an agreement to provide opportunities for effective research, learning and outreach at Rinker Rock Creek — all aimed at engaging the next generation and fostering a more sustainable Idaho.

The ranch, located near Hailey, was purchased in 2014 by the Conservancy and Wood River Land Trust from private landowner, Harry Rinker and his family. The 10,400-acre ranch encompasses the entire Rock Creek drainage southwest of Hailey and consists of high-quality sagebrush-steppe habitat, aspen forest, and river miles along Rock Creek. The protection of the area aligns with state and federal efforts to conserve sage grouse. Through a land-use agreement with The Natural Resource Conservation Service, the property is managed to conserve the area’s grasslands and to prevent future development.

Restoration and research projects have already begun on the property. The Rock Creek Restoration and Reconnection Project is intended to improve water quality, stream function and provide fish passage between Rock Creek and the lower Big Wood River. A second phase of the project, addressing the needs of the northern part of the ranch, is slated to start in 2017. As restoration and research projects evolve in the coming years, it will be the site of tours, outreach and education for landowners, ranchers, students, legislators and more.

The ranch property contains several tributaries to the Big Wood River: Rock Creek, Little Rock Creek, Big Poison Creek and Little Poison Creek, along with several unnamed streams. Future ranch management plans include restoring streams and restricting grazing in riparian areas. Improvements like willow planting along stream banks and reconstructing stream channels will benefit water quality and wildlife habitat.

Rinker Rock Creek Ranch has habitat that is valuable to sustaining sage grouse populations. Sage grouse occupy two leks on the property, and five more leks are located within one mile of the ranch. A number of leks with historic or undetermined status can be found on or near the property. Short-eared owls, eagles, many species of songbirds and waterfowl, and the yellow-billed cuckoo, a species currently listed as a “candidate,” also occur within the vicinity of the property.

To download a copy of the Rinker Rock Creek Ranch brochure click here.

The ranch is free and open to the public. This working cattle ranch provides exceptional hiking, horseback riding, mountain biking and wildlife viewing opportunities. Winter offers plenty of cross-country skiing and snowshoeing.

Motorized vehicles are limited to designated roads - Rock Creek Road*, Glendale Road, Hatty Gulch, and East Fork Rock Creek Road. Seasonal restrictions may apply to all types of access.

User Rules

Camping is strictly prohibited, no fires, firearms only for hunting, follow all state hunting and fishing regulations, hunting is permitted with access by foot and on designated motorized roads. No sage grouse hunting and no trapping allowed. Pack out your trash, please park in pullouts, do not drive over dry grass.