The Wayro route from Ridgecrest to San Luis Río Colorado is 337 miles (542 km), about 6 h 21 min of driving without stops. The U.S.–Mexico border is at about mile 290 on this route, near the Calexico West port of entry.
What the State Department tells travelers on this route:
- Baja California: “Travelers should remain on main highways and avoid remote locations.”
| Distance | 337 mi (542 km) |
|---|---|
| Driving time, no stops | 6 h 21 min |
| Main roads, in order | US-395 BUS → US-395 → I-15 → I-215 → I-10 → CA-86 → US-99 Hist → CA-78 → CA-111 → MEX-5 → MEX-2 |
| Border crossing | about mile 290 of this route, California → Baja California (near the Calexico West, CA port of entry) |
| Mexican states on the route | Baja California (Level 3), Sonora (Level 3) |
| Fuel estimate (car at 25 mpg) | about 13.5 gal; actual use varies by vehicle and traffic |
| Stops listed below | 8 |
Crossing into Mexico: what you need for San Luis Río Colorado
| Passport | Passport book or passport card to enter Mexico by land |
|---|---|
| FMM entry permit | Required for this trip: San Luis Río Colorado is well beyond the 12-mile (20 km) border zone where the permit is not needed |
| Temporary vehicle import permit (TIP) | Not needed: San Luis Río Colorado is inside Sonora's free zone (west of Highway 15 as far south as Empalme, plus a strip along the border that includes Cananea). Going farther south or east of Highway 15 requires a permit |
| Mexican auto insurance | Required for all vehicles: buy a Mexican policy before you cross |
Sources: U.S. State Department, Mexico travel information (updated August 11, 2026); permits are issued by Banjercito. Sonora free zone: Explore Sonora.
Crossing at Calexico West
Calexico West sits in downtown Calexico, directly across from Mexicali, and GSA describes it as the main border crossing linking the Imperial Valley to Baja California. It handles passenger vehicles and pedestrians and is in the middle of a multi-phase federal modernization.
Sources: [1]
What the drive from Ridgecrest to San Luis Río Colorado is like
US-395 (84 mi) and I-10 (72 mi) carry about 46% of the 337 miles. The U.S. part of the drive runs through California for about 290 miles; after the border at Calexico West you have about 47 miles left in Mexico. Of the 8 stops listed below, 2 are within a mile of the road.
The route from Ridgecrest to San Luis Río Colorado, road by road
| Road | Route miles (from–to) | Length, mi | State |
|---|---|---|---|
| US-395 BUS | 0–6 | 6 | California |
| US-395 | 6–90 | 84 | California |
| connecting roads | 90–91 | 1 | California |
| I-15 | 91–106 | 15 | California |
| I-215 | 106–121 | 15 | California |
| I-10 | 121–193 | 72 | California |
| CA-86 | 193–226 | 33 | California |
| US-99 Hist | 226–260 | 34 | California |
| CA-78 | 260–266 | 6 | California |
| CA-111 | 266–286 | 20 | California |
| connecting roads | 286–288 | 2 | California |
| MEX-5 | 288–292 | 4 | California, Baja California |
| connecting roads | 292–293 | 1 | Baja California |
| MEX-2 | 293–334 | 41 | Baja California, Sonora |
| local roads | 334–337 | 3 | Sonora |
- Mile 290 of this route: California → Baja California (international border)
- Mile 332 of this route: Baja California → Sonora (state line)
Stops between Ridgecrest and San Luis Río Colorado
- Right off the route (under 1 mile): Cajon Canyon (mile 108), Lincoln Memorial Shrine (mile 127)
- Nature and outdoors: Bonita Falls (mile 104), Cajon Canyon (mile 108), Devil Canyon (mile 112), Santa Rosa and San Jacinto Mountains National Monument (mile 159)
- Museums and history: Our Lady of the Rosary Cathedral (mile 116), Lincoln Memorial Shrine (mile 127), Gilman Ranch (mile 147), Santa Rosa and San Jacinto Mountains National Monument (mile 159), Sand to Snow National Monument (mile 160)
Bonita Falls
Off Lytle Creek Road in the San Bernardino National Forest, this waterfall cascades year-round; reaching the lower fall and its pool means a moderately hard walk uphill over river rock, watching for poison oak.
Cajon Canyon
Cajon Canyon, whose Spanish name means "the box," is a long valley ending in a box canyon in the northeastern San Gabriel Mountains of San Bernardino County.
Devil Canyon
This steep canyon on the south side of Paivia Peak drains the San Bernardino Mountains; at its mouth, about five miles north of San Bernardino, the State Water Project's Devil Canyon Powerplant generates electricity from water piped down from Silverwood Lake.
Our Lady of the Rosary Cathedral
Dedicated in 1928 as Holy Rosary Church, this San Bernardino parish became Our Lady of the Rosary Cathedral, seat of the newly formed Diocese of San Bernardino, in 1978.
Lincoln Memorial Shrine
Dedicated in 1932 as a gift from Robert and Alma Watchorn, this octagonal limestone memorial by architect Elmer Grey houses a museum devoted to Abraham Lincoln and the Civil War, with Lincoln's words inscribed on its exterior walls.
Gilman Ranch
Run by Riverside County Parks, this 100-acre ranch in Banning grew from an adobe hut into a stage stop and ranch house. Its wagon museum displays stagecoaches and buggies, and a 1.5-mile trail looks over Banning Pass.
Santa Rosa and San Jacinto Mountains National Monument
Rising from the Coachella Valley toward alpine peaks, this monument holds fan palm oases, bighorn sheep habitat, wilderness areas, and part of the Pacific Crest Trail. Its visitor center sits on Highway 74 in Palm Desert.
Sand to Snow National Monument
Established in 2016, this monument climbs from the Sonoran Desert floor to San Gorgonio Mountain, the highest peak in California south of the Sierra Nevada, and carries 30 miles of the Pacific Crest Trail.
When you get to San Luis Río Colorado
San Luis Río Colorado sits in Sonora's far northwest corner, across the line from San Luis, Arizona, between the sand sea of the Gran Desierto de Altar and the Baja California state line. The municipality promotes itself as Mexico's date capital, and it cites the National Weather Service in calling itself the hottest city in Mexico.
- Museo Regional: Set inside the city's urban park, the regional museum keeps a permanent exhibit on the Cucapá people alongside rotating shows by local and regional artists. source
- Bosque de la Ciudad: This big green space in the middle of town holds a 7,000-seat ballpark, playgrounds and sports fields where local leagues play. source
- Teatro Río Colorado: The city's 600-seat theater on Avenida Madero hosts concerts and dance performances organized by local and regional cultural groups. source
More drives to San Luis Río Colorado
- Encinitas, CA to San Luis Río Colorado
- Boulder City, NV to San Luis Río Colorado
- Pismo Beach, CA to San Luis Río Colorado
- Carlsbad, CA to San Luis Río Colorado
- Santa Ana, CA to San Luis Río Colorado
- Santa Barbara, CA to San Luis Río Colorado
From Ridgecrest to other places in Mexico
- Ridgecrest, CA to Tecate
- Ridgecrest, CA to Mexicali
- Ridgecrest, CA to Rosarito
- Ridgecrest, CA to Puerto Peñasco
- Ridgecrest, CA to Sonoyta
- Ridgecrest, CA to Ensenada
All routes to San Luis Río Colorado, border crossings and permits in one place: Driving to San Luis Río Colorado, Mexico from the U.S.
Continue Your Adventure
Frequently asked questions
How long is the drive from Ridgecrest to San Luis Río Colorado?
About 6 h 21 min of driving without stops, over 337 miles.
How far is San Luis Río Colorado from Ridgecrest by car?
About 337 miles (542 km) on the Wayro route. Other map services may show a few miles more or less, depending on where they start and end in each city.
Where does the Ridgecrest to San Luis Río Colorado drive cross into Mexico?
At about mile 290 of this route, from California into Baja California, near the Calexico West port of entry.
Do I need a permit to drive my car from Ridgecrest to San Luis Río Colorado?
No vehicle permit is needed. San Luis Río Colorado is inside Sonora's free zone (west of Highway 15 as far south as Empalme, plus a strip along the border that includes Cananea). Going farther south or east of Highway 15 requires a permit. You also need Mexican auto insurance and a passport book or card. An FMM entry permit is required too.
Is it safe to drive from Ridgecrest to San Luis Río Colorado?
The U.S. State Department rates Baja California Level 3: Reconsider Travel; Sonora Level 3: Reconsider Travel (advisory issued May 29, 2026). Read the full advisory before you go.
What roads does the drive from Ridgecrest to San Luis Río Colorado use?
In order: US-395 BUS, US-395, I-15, I-215, I-10, CA-86, US-99 Hist, CA-78, CA-111, MEX-5 and MEX-2. The road-by-road table above shows the route miles and states for each one.
What are good stops between Ridgecrest and San Luis Río Colorado?
Closest to the road: Cajon Canyon (canyon, mile 108, 0.6 mi from the route); Our Lady of the Rosary Cathedral (catholic cathedral, mile 116, 1 mi from the route); Lincoln Memorial Shrine (historic site, mile 127, 0.6 mi from the route). All stops are described above.
How we put this guide together
Wayro calculates the route from OpenStreetMap road data; mile numbers are positions along this route, not highway mile markers, and "from the route" distances are straight-line, so the real detour depends on access roads. Stops are chosen from parks, natural sites, museums, historic sites and attractions close to the route (roughly 2 to 7 miles depending on the type, farther for World Heritage sites): at least one strong stop for each stretch of the drive, then the best-known places nearest the road, with no more than five of one type, up to nine in all. Places that are closed, private or not open to visitors are removed. Place and city descriptions are written by the Wayro team from official park, museum, tourism and government websites and other published sources. Safety levels and entry rules were checked against the U.S. Department of State on September 29, 2026. Conditions change, so check the linked sources before you travel.
Route data © OpenStreetMap contributors.