Trail Overview

This scenic route explores the western portion of the Otay Mountain Truck Trail, passing below Otay Mountain (3,501 feet) with sweeping views of the valleys and hills of Tijuana, Mexico. The drive follows mostly double-wide gravel roads with some single-lane sections around tight turns, many equipped with mirrors to help with two-way traffic. Along the way, you’ll pass near the historic Minnewawa WWII bunkers, located below the main peak of Otay Mountain, a reminder of the area’s wartime history. The route also travels through an active border region, so U.S. Border Patrol vehicles are commonly seen along the trail. The route is high-clearance 2WD-friendly when staying on the guided portion of the trail.

Photos of Otay Mountain Truck Trail West

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Difficulty

Well-maintained shelf roads that become tight as you're climbing through the mountain. Proceed with caution.

History

The Minnewawa WWII bunkers are historic military structures built on the Otay Mountain Truck Trail. The bunkers were used for training, observation, and coastal defense preparation. The elevated position made it an ideal location for monitoring movement and conducting field training exercises.

Technical Rating

Tony R

Jun 28, 2026

Permanently Closed

Posted Private PropertyLocked Gate

South side of the boarder by the highway 11 entrance where the map states that could be an entry, is closed followed by the pictures. However, by the otay lake rd on the north side is open. Little rough of an entrance beware of deep potholes and narrow road to get in at first after the road tends to smooth out after a 60 yards. So if you’re planning on going with a 2wd or low clearance of a vehicle good luck.

John O’Meara

Jun 20, 2026

2023 Chevrolet Colorado

Open

Dusty

Fully open

Dwight Everhart

Apr 19, 2026

2021 Jeep Wrangler

Permanently Closed

Officially Closed SignPosted Private PropertyLocked Gate

Only open to authorized personnel