Diamond Craters ONA
Diamond Craters ONA is an easy 40+ miles off-road trail near Diamond, OR, best run April - November. The gear list marks Extra water as required, and All-terrain tires and 4WD capability as recommended. A stock high-clearance 4x4 can run it; check the gear list before you go.
Trail Conditions
No reports yet
Diamond Craters is a geological wonderland in Oregon's remote Harney Basin, containing one of the most diverse collections of basaltic volcanic features in the United States. Lava flows, spatter cones, maars (volcanic craters formed by groundwater interaction), and pressure ridges are all accessible by BLM roads that loop through the area. The surrounding high desert adds to the otherworldly atmosphere, with sagebrush stretching to the horizon in every direction. It's a place that rewards curiosity and geological interest.
Fun Facts
Diamond Craters contains virtually every type of basaltic volcanic feature in a compact area.
The volcanic activity that formed the craters occurred just 7,000-25,000 years ago.
The BLM designated it an Outstanding Natural Area to protect its geological significance.
🛞 Tires
🔧 Suspension
⚙️ Drivetrain
🪢 Recovery
📦 Other
Closest campgrounds to Diamond Craters ONA:
- The Narrows · Princeton · 15 mi (straight-line)
- Crystal Crane Hot Springs · Burns · 23 mi (straight-line)
- Page Springs Campground · 23 mi (straight-line)
- Jackman Park Campground · 29 mi (straight-line)
Straight-line distance. Check the map for drive time.
GPS Coordinates
Import into Gaia GPS, OnX Offroad, or Garmin
Map of Diamond, OR
5-Day Forecast
Nearby Trails
WHAT YOU'LL NEED
Stock rigs can usually run this trail, but the right tire size and fitment make it more enjoyable.
Tire Size Calculator
Convert tire sizes and compare diameter differences before you swap.
Verify your stock tires meet minimum clearance for this trail.
Gear Ratio Calculator
Find the right gear ratio after lifting or upsizing tires.
Re-gear after a tire upgrade to restore trail torque and MPG.
Wheel Fitment Calculator
Calculate backspacing and offset so wider wheels clear your suspension.
Ensure any wheel upgrade clears your factory suspension.