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Turning on Grimes Creek Road from Highway 21, also called the Ponderosa Pines Scenic Route, to the right is a sign for Wildcat Gulch. Wildcat Gulch will also take you to Centerville Road and then onto Idaho City, like Grimes Creek. But instead of taking through the valley on a wide easy road, Wildcat Gulch goes up the mountain and across the ridgelines, giving you a completely different experience...
No dispersed camping coordinates are listed for this route.
Turning on Grimes Creek Road from Highway 21, also called the Ponderosa Pines Scenic Route, to the right is a sign for Wildcat Gulch. Wildcat Gulch will also take you to Centerville Road and then onto Idaho City, like Grimes Creek. But instead of taking through the valley on a wide easy road, Wildcat Gulch goes up the mountain and across the ridgelines, giving you a completely different experience...
When to go: Summer and Fall typically offer the best window.
Vehicles: Jeep/Truck, SUV. Standard maintenance and a spare tire cover the basics here.
Southwest Idaho splits across the Snake River. South of the river is Owyhee high desert — sage flats, slickrock canyons, and a million-plus acres of BLM. North is the Boise National Forest, with mining-era roads, ponderosa, and quick out-of-Boise access. Most weekend trips work off Boise, Mountain Home, Marsing, or McCall.
Best for drivers who understand their vehicle and the cost of a mistake in remote country.
Review route details and listed GPS coordinates, then open the connected offroad map for planning context.
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