Mountain Transit
| Parent | Mountain Area Regional Transit Authority |
|---|---|
| Founded | 1993 |
| Headquarters | Big Bear |
| Service area | Big Bear Valley, Running Springs, Lake Arrowhead, Crestline, and Valley of Enchanment to San Bernardino |
| Service type | Bus service, Dial a Ride |
| Routes | 9 |
| Hubs | 2 |
| Fleet | 26 buses |
| Annual ridership | 796,327 passengers (FY 2024) |
| Chief executive | Sandy Benson |
| Website | mountaintransit |
Mountain Transit (legally the Mountain Area Regional Transit Authority) is the third largest regional transit agency in San Bernardino County, California. Mountain Transit serves the San Bernardino Mountain communities of Crestline, Lake Arrowhead, Running Springs, and Big Bear Lake, providing local service for more than 163,000 passengers each year.
Mountain Transit also offers Off-The-Mountain (OTM) service that enables the residents of the mountain communities to connect with major stops in San Bernardino, which include Metrolink, Omnitrans, Greyhound, St. Bernadine's Hospital, and other stops along the way. This service runs Mondays, Wednesdays, and Fridays from Big Bear, and Monday through Saturday from the RIM area. The Off-The-Mountain service allows mountain residents to commute to their jobs in the San Bernardino valley with two trips from Big Bear and four trips from Crestline/Lake Arrowhead weekdays.
Mountain Transit serves an area of 269 square miles.