Forest Road 231 – Crazy Creek Road
Granite peaks and alpine solitude in the Crazies
Forest Road 231 punches deep into the rugged Crazy Mountains, where you’ll ford Crazy Creek multiple times before reaching high alpine meadows at the base of towering granite peaks. This rough forest service road starts innocently near Big Timber but quickly deteriorates into a boulder-strewn track that demands careful tire placement and skid plate protection. The payoff comes at mile 12, where the road opens into pristine Crazy Lakes basin surrounded by 11,000-foot peaks that define Montana’s wildest range.
Difficult rating due to loose rock, deep water crossings, and steep grades up to 15 percent. High-clearance 4WD absolutely required, plus recovery gear for the inevitable stuck moment. July through September only — snow lingers well into summer at elevation. No services for 60 miles once you leave Big Timber, so pack extra fuel, food, and water. You’ll find world-class dispersed camping and fishing, plus solitude that’s increasingly rare in Montana’s backcountry.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Technical 4x4 |
| Surface | Rock |
| Features | Camping, High Altitude, Remote, Water Crossings |
| Length (miles) | 18 mi / 29 km |
| Duration | Full day |
| Max elevation (ft) | 9200 ft |
| Best season | July-September |
| Minimum vehicle | Stock 4WD high-clearance |
| Nearest town | Big Timber, Montana |
| Land manager | Gallatin National Forest |
| Permit required | No |
| Cell service | None |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Start coordinates | |
| End coordinates | |
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| Find on Google | Search on Google → |
Location
Trail Conditions
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Frequently asked questions
Can a stock Jeep Wrangler handle Forest Road 231?
Yes, but it's right at the edge of stock capability with rocky sections and creek crossings that'll test your undercarriage. High-clearance 4WD is mandatory.
Is Crazy Creek Road passable in early June?
No, snow blocks the upper elevations until mid-July most years. Best access is July through September when all creek crossings are manageable.
Do I need permits to camp along Forest Road 231?
No permits required for dispersed camping in Gallatin National Forest, but follow Leave No Trace principles and camp in established sites when possible.
What's the gnarliest part of this trail?
The creek crossings around mile 12-14 where the road follows Crazy Creek - loose rocks, deep ruts, and water flow that varies with snowmelt.
How far should I plan to drive for gas before hitting this trail?
Fill up in Big Timber - it's your last reliable fuel for 50+ miles, and you'll burn more gas than usual crawling over the technical sections.