Difficulty | Expert |
Miles | 80+ |
Time | 2-3 days |
Land | BLM, USDA FS, AZTL, Private |
Elevation | 5,592 Ft. |
Fuel Stint | 88 Mi. |
Description
Boulder Pass Trail is a highly demanding 4WD adventure trail that will take 2 to 3 days to complete. This route incorporates Ruby Wash, a long-lost mild rock crawling trail. Its short distance will take you about 4.5 hours. This section is tight, overgrown with a single, highly technical waterfall. Heading north will take you down the waterfall. There is an alternate route that will take you around Ruby Wash.
You will experience various types of terrain, including deep sand, water crossings, steep grades, rock gardens, and off-camber washouts. You will find boulders 12 inches in diameter. Body damage and vehicle failure are possible. The trail is best completed from north to south for the best views.
Rock Crawlers: If you’re into Rock Crawling, this route likely won’t satisfy your technical requirements. Ruby Wash has a single waterfall that can be accomplished by any lightly modified 4×4 vehicle. For rock crawlers, this route is a walk in the park.
Starting Points: This route has a few optional starting points. All starting points begin in Morristown, Arizona.
- The long-lost Ruby Wash Trail is a mildly technical, short rock trail with just a few obstacles. This trail is narrow, lightly traveled, and has a single waterfall where rollover and body damage can occur. There is a small slot canyon and a mountain spring along this portion. The trail is indicated in red on the map.
- Morgan City Wash is an easy trail that’s suitable for any stock 4×4 vehicle. It starts and ends at Castle Hot Springs Rd, beginning West of Lake Pleasent, and travels north along the Hells Gate Wilderness. Its indicated in orange on the map.

Download
This download consists of GEOJson, GPX, and KML files.
Destinations
There are several points of interest along this route, including Castle Creek Canyon, Bradshaw’s Grave, Copperopolis, Lehman Mill, and the well-known Crown King.
Requirements
You will need at least a 2-inch lift with 33-inch tires and one locker. Recovery equipment should be on hand. Do not attempt this route alone.
Trail Write-ups
This write-up of the Boulder Pass Trail does not include Ruby Wash.
Important information
This route contains technical obstacles and should not be attempted alone.
Arizona Trust Land Permit is required.








