Big Jacks Creek Wilderness, Protected wilderness in Owyhee County, Idaho

Big Jacks Creek Wilderness covers basalt plateaus in Owyhee County, southwestern Idaho, ranging from 2,808 to 5,872 feet in elevation. Its canyons, cut as deep as 655 feet, are lined with several varieties of sagebrush. About 35 miles of Big Jacks Creek, a wild river, flows north into the Bruneau River.

The Big Jacks Creek Wilderness was created by the Omnibus Public Land Management Act of 2009, signed into law by President Barack Obama on March 30, 2009. The same act established five other wilderness areas in Owyhee County, together known as the Owyhee Canyonlands Wilderness Areas, adding 517,025 acres of wilderness in Idaho.

The name comes from Big Jacks Creek, whose roughly 35 miles (56 km) of water are classified as a wild river. The creek flows north into the Bruneau River, which joins the Snake River. Camping and fishing are allowed with a proper permit, and hunting is permitted in season, as in other Bureau of Land Management wilderness areas.

Access to the area works best from the town of Bruneau, where you head south along Highway 51. The route leads you to various entry points from which you can walk into the protected area.

The wilderness shelters bighorn sheep, mountain quail and two species of sensitive plants. Its 35 miles (56 km) of Big Jacks Creek are classified as a wild river, and the stream flows north into the Bruneau River, which reaches the Snake River. Elevations run from 2,808 to 5,872 ft (856–1,790 m).