Monticello to Manhattan Beach: Ultimate Road Trip Guide

This route traces part of the Old Spanish Trail, a historic trade route used in the 19th century connecting Santa Fe to Los Angeles. Today, the 700-mile drive from Monticello to Manhattan Beach takes about 11 hours without stops, winding through dramatic red rock canyons, high desert plateaus, and finally the Pacific Coast.

The journey crosses three states and passes near two UNESCO World Heritage sites: Mesa Verde National Park and Grand Canyon National Park. The route is known for its stark beauty and surprising variety, from Utah's slickrock to Arizona's Ponderosa pine forests and California's coastal sage scrub.

Deer and cattle crossings are common on US-191 and US-89, especially at dawn and dusk. Wild burros frequent the road near Oatman, AZ. Always brake for animals.

• Family stops: In Page, the Glen Canyon Dam Visitor Center (free) and Lake Powell’s Wahweap Marina (boat rentals). In Arizona, the Cameron Trading Post (historic, has a petting zoo). In California, the California Science Center in Exposition Park near I-10 is a great break for kids.
• Pet-friendly stops: Many hotels in Page and Las Vegas allow pets. The Bureau of Land Management land near Moab and Kanab is ideal for off-leash hiking. In California, the Huntington Dog Beach in Huntington Beach (just south of Manhattan Beach) is a must.
• Fatigue management: Plan stops every 2-2.5 hours. Rest areas: US-89 near Kanab (has picnic tables), I-15 near Primm, NV (casino rest area open 24/7).
• Road quality: I-15 in California from Baker to San Bernardino is well-maintained but can be busy. US-89 from Page to Kanab is winding but smooth. US-191 in Utah is patrolled but winding; watch for rockslides after rain.

From Monticello, head south on US-191 through the Manti-La Sal National Forest with views of the La Sal Mountains. Near Blanding, detour to Natural Bridges National Monument, home to three natural bridges and some of the darkest skies in the country.

• Utah's Canyon Country: Valley of the Gods (free scenic drive) and Goosenecks State Park offer dramatic views without crowds.
• Arizona's Vermilion Cliffs: Drive US-89A to see the Wave (permit required) or simply stop at the Paria River Vista for a photo.
• Navajo Nation: The stretch from Kayenta to Page passes through the Navajo Nation. The roadside stalls sell authentic Navajo fry bread and silver jewelry.
• Lake Powell and Page: Horseshoe Bend is a must-see, a 1.5-mile hike to a 1,000-foot deep meander of the Colorado River. Entry fee is $10 per vehicle.
• Las Vegas Strip: While not natural, the neon landscape is a cultural phenomenon. Consider a detour to Red Rock Canyon for desert scenery 30 minutes west.
• Southern California coast from San Bernardino to Manhattan Beach: The route passes through the Inland Empire and then the Los Angeles basin; the transition from chaparral-covered mountains to beach suburbs is stark.

The primary highways are US-191, US-163, US-160, US-89, US-93, and I-15. Most of the route is well-paved, but sections between Kayenta and Page include narrow two-lane roads with limited shoulders.

• Fuel stops are sparse east of Page, especially between Mexican Water and Page (about 70 miles). Fill up in Kayenta, AZ (last reliable station before Page).
• Cellular coverage is intermittent from Monticello to Page; download offline maps. Verizon and T-Mobile work in most towns but not in remote canyons.
• Entry to California from Nevada via I-15 has agricultural inspection stations near Baker; all produce must be declared or discarded.

For a detailed breakdown of how to plan how to find the best stops and hidden gems between cities, this guide covers apps and strategies.

Tolls: Only on parts of I-15 in California (Express Lanes from San Bernardino to Los Angeles). Use FasTrak or pay online within 48 hours.