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About Mountain Transit
Mountain Transit provides Fixed Route, Off-the-Mountain (OTM), and Premium Service throughout the rural San Bernardino Mountain communities of the Big Bear Valley, Crestline, Lake Arrowhead, and Running Springs.
Mountain Transit services are managed by Mountain Area Regional Transit Authority, a rural transit agency that was formed December of 1993 under a joint powers authority between the City of Big Bear Lake and San Bernardino County.
Alerts
Alerts
Trolley to Trails Alert
Effective Date: 09/21/2026 - 10/04/2026
Affected Route(s):
Trolley to Trails Alert
Effective Date: 09/21/2026
Affected Route(s):
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
Sunday 10/04/2026
ROUTE:
Trolley to Trails
MORE INFO:
Trolley to Trails last day for this season will be 10/04/2026, be sure to enjoy the last hurrah and we hope to see you riding next season.
For updates to service & live tracking visit below links:
WEBSITE LINK
FACEBOOK LINK
REAL-TIME TRACKING APP LINK
Mountain Transit Off The Mountain Route 6
Effective Date: 09/14/2026 - 12/31/2026
Affected Route(s):
Mountain Transit Off The Mountain Route 6
Effective Date: 09/14/2026
Affected Route(s):
DATE:
Effective September 09/14/2026
ROUTE:
Mountain Transit Off The Mountain Route 6
MORE INFO:
Route 6 arrival and departure times have been adjusted. To see the new schedule visit
https://www.mountaintransit.org/routes/rim-otm-route-6/
For updates to service & live tracking visit below links:
WEBSITE LINK
FACEBOOK LINK
REAL-TIME TRACKING APP LINK
Big Bear and RIM Service Operates on a Sunday Schedule
Effective Date: 09/07/2026 - 12/31/2026
Affected Route(s):
- Big Bear Blue Line
- Big Bear Gold Line
- Big Bear OTM Route 5
- Big Bear Red Line
- Big Bear Trolley To Trails
- RIM OTM Route 6
- RIM Route 2
- RIM Route 4
Big Bear and RIM Service Operates on a Sunday Schedule
Effective Date: 09/07/2026
Affected Route(s):
- Big Bear Blue Line
- Big Bear Gold Line
- Big Bear OTM Route 5
- Big Bear Red Line
- Big Bear Trolley To Trails
- RIM OTM Route 6
- RIM Route 2
- RIM Route 4
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
Labor Day 9/7/2026
TIME:
6:00AM
SERVICE AREA AFFECTED:
RIM Area
Big Bear Lake/Big Bear City
MORE INFO:
Big Bear Service Operates on a Sunday Schedule
6:00 AM- 9:48 PM Hourly
(Route 5 does not run on holidays)
Rim Service Operates on a Sunday Schedule
9:05 AM – 5:10 PM
(Route 6 and Route 4 do not run on holidays)
Mountain Transit office will be closed.
For updates to service & live tracking, visit the links below:
Big Bear OTM Route 5 Alert
Effective Date: 08/28/2026 - 12/31/2026
Affected Route(s):
Big Bear OTM Route 5 Alert
Effective Date: 08/28/2026
Affected Route(s):
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
Effective Friday August 28, 2026
TIME:
8:30 AM
SERVICE AREA AFFECTED:
Big Bear OTM Route 5
LOCATION / STOP:
Fox Farm Road
MORE INFO:
The Route 5/OTM bus stop located at Mountain Transit’s old Administration Building on Fox Farm Road is permanently closed. Route 5/OTM will pick up at the new Community Garden shelter on Fox Farm Road across the street from the entrance to Marshall’s. This change does not affect the schedule.
For updates to service & live tracking visit below links:
Addition of New Bus Stop
Effective Date: 08/21/2026 - 12/31/2026
Affected Route(s):
- RIM Route 2
- RIM OTM Route 6
- RIM Route 4
- Big Bear Blue Line
- Big Bear Gold Line
- Big Bear OTM Route 5
- Big Bear Trolley To Trails
- Big Bear Red Line
Addition of New Bus Stop
Effective Date: 08/21/2026
Affected Route(s):
- RIM Route 2
- RIM OTM Route 6
- RIM Route 4
- Big Bear Blue Line
- Big Bear Gold Line
- Big Bear OTM Route 5
- Big Bear Trolley To Trails
- Big Bear Red Line
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
08/21/2026 – Ongoing
SERVICE AREA AFFECTED:
Mountain Transit Service Area
MORE INFO:
Mountain Transit is pleased to announce the addition of new bus stop shelters throughout our entire service area.
Some stops have been relocated or removed.
Please go to mountaintransit.org for updated stop locations.
Service Alert : Route 4 service schedule
Effective Date: 08/18/2026 - 12/31/2026
Affected Route(s):
Service Alert : Route 4 service schedule
Effective Date: 08/18/2026
Affected Route(s):
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
08/18/2026
TIME:
08:45AM
SERVICE AREA AFFECTED:
Arrowbear/Running Springs/Lake Arrowhead
LOCATION / STOP:
Route 4
MORE INFO:
To better serve the community, the Route 4 service schedule will be changing.
For updates to service & live tracking visit below links:
Service Alert : Greys Peak Trail Opening
Effective Date: 08/15/2026 - 12/31/2026
Affected Route(s):
Service Alert : Greys Peak Trail Opening
Effective Date: 08/15/2026
Affected Route(s):
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
08/15/2026
TIME:
8:30AM
SERVICE AREA AFFECTED:
Big Bear Lake
LOCATION / STOP:
Grays Peak Trail
MORE INFO:
Get your hiking boots and gear ready, Grays Peak trail is now open and Trolley to Trails is eager to help get you there! Ride our free service to get you to your next adventure.
Mountains Community Hospital Bus Service
Effective Date: 08/21/2026 - 09/30/2026
Affected Route(s):
Mountains Community Hospital Bus Service
Effective Date: 08/21/2026
Affected Route(s):
DATE:
08/21/2026 through 09/30/2026
TIME:
4:00PM
SERVICE AREA AFFECTED:
Lake Arrowhead
LOCATION / STOP:
Mountains Community Hospital
MORE INFO:
The Mountains Community Hospital stop has been relocated. All passengers will be picked up and dropped off at the Emergency Room Sign.
For updates to service & live tracking visit below links:
San Bernardino National Forest Route Map
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News and Events
Check here for the latest in Mountain Transit News and Events.
Updates on Routes, Community Events, Job Opportunities, and Emergency Alerts.

NOTICE OF PUBLIC HEARING — June 17, 2026 at 10:00 AM

Public Announcement: Surplus Inventory for Sale

Celebrate Rural Transit Day, July 16!
Trolley to Trails Alert
Effective Date : 09/21/2026
Affected Route :
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
Sunday 10/04/2026
ROUTE:
Trolley to Trails
MORE INFO:
Trolley to Trails last day for this season will be 10/04/2026, be sure to enjoy the last hurrah and we hope to see you riding next season.
For updates to service & live tracking visit below links:
WEBSITE LINK
FACEBOOK LINK
REAL-TIME TRACKING APP LINK
Mountain Transit Off The Mountain Route 6
Effective Date : 09/14/2026
Affected Route :
DATE:
Effective September 09/14/2026
ROUTE:
Mountain Transit Off The Mountain Route 6
MORE INFO:
Route 6 arrival and departure times have been adjusted. To see the new schedule visit
https://www.mountaintransit.org/routes/rim-otm-route-6/
For updates to service & live tracking visit below links:
WEBSITE LINK
FACEBOOK LINK
REAL-TIME TRACKING APP LINK
Big Bear and RIM Service Operates on a Sunday Schedule
Effective Date : 09/07/2026
Affected Route :
- Big Bear Blue Line
- Big Bear Gold Line
- Big Bear OTM Route 5
- Big Bear Red Line
- Big Bear Trolley To Trails
- RIM OTM Route 6
- RIM Route 2
- RIM Route 4
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
Labor Day 9/7/2026
TIME:
6:00AM
SERVICE AREA AFFECTED:
RIM Area
Big Bear Lake/Big Bear City
MORE INFO:
Big Bear Service Operates on a Sunday Schedule
6:00 AM- 9:48 PM Hourly
(Route 5 does not run on holidays)
Rim Service Operates on a Sunday Schedule
9:05 AM – 5:10 PM
(Route 6 and Route 4 do not run on holidays)
Mountain Transit office will be closed.
For updates to service & live tracking, visit the links below:
Big Bear OTM Route 5 Alert
Effective Date : 08/28/2026
Affected Route :
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
Effective Friday August 28, 2026
TIME:
8:30 AM
SERVICE AREA AFFECTED:
Big Bear OTM Route 5
LOCATION / STOP:
Fox Farm Road
MORE INFO:
The Route 5/OTM bus stop located at Mountain Transit’s old Administration Building on Fox Farm Road is permanently closed. Route 5/OTM will pick up at the new Community Garden shelter on Fox Farm Road across the street from the entrance to Marshall’s. This change does not affect the schedule.
For updates to service & live tracking visit below links:
Addition of New Bus Stop
Effective Date : 08/21/2026
Affected Route :
- RIM Route 2
- RIM OTM Route 6
- RIM Route 4
- Big Bear Blue Line
- Big Bear Gold Line
- Big Bear OTM Route 5
- Big Bear Trolley To Trails
- Big Bear Red Line
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
08/21/2026 – Ongoing
SERVICE AREA AFFECTED:
Mountain Transit Service Area
MORE INFO:
Mountain Transit is pleased to announce the addition of new bus stop shelters throughout our entire service area.
Some stops have been relocated or removed.
Please go to mountaintransit.org for updated stop locations.
Service Alert : Route 4 service schedule
Effective Date : 08/18/2026
Affected Route :
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
08/18/2026
TIME:
08:45AM
SERVICE AREA AFFECTED:
Arrowbear/Running Springs/Lake Arrowhead
LOCATION / STOP:
Route 4
MORE INFO:
To better serve the community, the Route 4 service schedule will be changing.
For updates to service & live tracking visit below links:
Service Alert : Greys Peak Trail Opening
Effective Date : 08/15/2026
Affected Route :
PLEASE HELP SHARE THIS NEWS WITH OUR COMMUNITIES!
DATE:
08/15/2026
TIME:
8:30AM
SERVICE AREA AFFECTED:
Big Bear Lake
LOCATION / STOP:
Grays Peak Trail
MORE INFO:
Get your hiking boots and gear ready, Grays Peak trail is now open and Trolley to Trails is eager to help get you there! Ride our free service to get you to your next adventure.
Mountains Community Hospital Bus Service
Effective Date : 08/21/2026
Affected Route :
DATE:
08/21/2026 through 09/30/2026
TIME:
4:00PM
SERVICE AREA AFFECTED:
Lake Arrowhead
LOCATION / STOP:
Mountains Community Hospital
MORE INFO:
The Mountains Community Hospital stop has been relocated. All passengers will be picked up and dropped off at the Emergency Room Sign.
For updates to service & live tracking visit below links:


