Entiat River Road to Mad River Trail
Alpine mining road through Cascade wilderness terrain
The Entiat River Road dead-ends 38 miles into Washington’s Cascade wilderness, but the real adventure starts where the pavement quits at Cottonwood Campground. The rough 4WD track continues another 8 miles up the Mad River drainage, following traces of a 1930s mining road that once hauled ore from the Holden Mine. Granite boulders the size of pickup trucks litter the creek bottom, while remnants of wooden flumes cling to canyon walls above the rushing whitewater.
This is expert-level technical driving through loose rock fields and water crossings that change with every spring runoff. Stock vehicles stop at Cottonwood — beyond that point requires lockers, armor, and serious recovery gear. The payoff reaches pristine alpine country where old-growth larch and Glacier Peak views make the beating worthwhile. Best window runs late July through September when snowmelt subsides and creek levels drop to manageable crossings.
Trail Specs
| Difficulty | Expert |
|---|---|
| Trail Type | Technical 4x4 |
| Surface | Rock |
| Features | High Altitude, Historic, Remote, Water Crossings |
| Length (miles) | 16 mi / 25.7 km |
| Duration | Full day |
| Max elevation (ft) | 4800 ft |
| Best season | July-September |
| Minimum vehicle | Modified 4WD with lockers |
| Nearest town | Entiat, Washington |
| Land manager | US Forest Service - Okanogan-Wenatchee National Forest |
| Permit required | No |
| Cell service | None |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Official sources | fs.usda.gov |
| Start coordinates | |
| End coordinates | |
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Location
Trail Conditions
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Frequently asked questions
Can a stock Tacoma or 4Runner run this trail?
No. This trail requires a modified 4WD with lockers — stock rigs will get stuck or damaged on the rocky technical sections. High clearance, skid plates, and at least one locker are non-negotiable here.
When does the Entiat River Road to Mad River Trail actually open each year?
July through September is your window. Snowpack at elevation keeps this trail buried well into summer most years — call the Okanogan-Wenatchee National Forest Entiat Ranger District before you go, because July access can vary significantly year to year.
Do I need a permit to run this trail?
No permit is required to drive the trail, but you'll need a Northwest Forest Pass for trailhead parking on USFS land. Self-issue passes are not always available at remote trailheads, so grab one in Entiat or online before you leave.
What's the hardest section and what should I actually expect?
The upper rocky shelf sections are the crux — loose embedded rock, off-camber ledges, and tight shelf road with no guardrails and serious exposure. One bad line can put a wheel over the edge, so spotters and slow deliberate driving are essential.
How far is it to the nearest gas from the trailhead and is there water on trail?
Entiat is your last fuel stop before heading in — don't count on anything beyond that. There are water crossings on trail but treat all sources; no potable water is provided, and with zero cell service, a mechanical or medical problem means you're self-extracting or waiting for another rig to come through.
Trail track
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