Porcupine Mountains Wilderness
Porcupine Mountains Wilderness is a moderate 45 miles off-road trail near Ontonagon, MI. It requires a properly built 4x4 with All-terrain tires and is best run May - October. Stock trucks and Jeeps are not recommended; plan on the required modifications before attempting it.
Trail Conditions
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This trail offers a unique off-road adventure through diverse terrain and stunning scenery. Whether you're seeking technical challenges or scenic exploration, you'll find an experience that connects you with nature and tests your driving skills. Every journey on the trail creates memories and builds the confidence that comes from conquering new terrain.
Fun Facts
Every trail tells a unique story shaped by geology, history, and the adventurers who came before.
Off-road trails connect us to landscapes that remain wild and untouched by pavement.
🛞 Tires
⚙️ Drivetrain
Where to Camp
GPS Coordinates
Import into Gaia GPS, OnX Offroad, or Garmin
Map of Ontonagon, MI
5-Day Forecast
Nearby Trails
WHAT YOU'LL NEED
A mild lift, all-terrain tires, and correct gear ratio will get you through this trail confidently.
Tire Size Calculator
Convert tire sizes and compare diameter differences before you swap.
Size up correctly, 33s vs 35s matters on moderate terrain.
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.
Extra wheel width = extra clearance on tight lines. Check offset before buying.
MPG Calculator
Estimate fuel economy after a tire upgrade, important for remote runs.
Bigger tires cut MPG. Plan your fuel stops for this trail.