Transponder Devices

A transponder, which is a small credit-card shaped device, is correctly attached to the inside of a windshield
A RMNP transponder has been correctly installed on the inside of a windshield. It has been placed on the upper right, passenger side of a vehicle's window, just below the windshield top tint. This allows the transponder to be easily read.

NPS Photo

Transponders Sales & Renewals are Available on Sundays at Beaver Meadows Visitor Center

Interested in a transponder for RMNP? New transponder devices and renewals for transponders previously purchased are available at Beaver Meadows Visitor Center on Sundays from 9 a.m. to noon and 1 p.m. to 4 p.m.

What is a Transponder?

A transponder is a small, credit card-sized device that must be affixed to the upper right-hand, passenger side, on the inside of a vehicle’s windshield.

If your windshield has a tint along the top, place the transponder just below the shading, so it is visible and can be read at the entrance gate.

Passholders who purchase a transponder will have the option to use the park's Transponder Lane during the times the lane is open when entering RMNP via the Beaver Meadows or Fall River Entrance to the park.

How Does the Transponder Work?


This voluntary amenity offers interested resident annual and lifetime pass holders (RMNP Annual Pass, America the Beautiful Resident Annual, Senior, Access, Military, 4th Grade, and Volunteer passholders) the ability to use the park's Transponder Lane when entering Rocky Mountain National Park via the Beaver Meadows and Fall River Entrances.

Transponder lanes are currently available on the east side of the park at Beaver Meadows Entrance and Fall River Entrance. A new transponder lane will be available in the future on the west side of RMNP at the Grand Lake Entrance. The previous transponder lane was destroyed in the 2020 East Troublesome Fire.

 
Transponder Lane at Fall River Entrance
Transponder Lane at Fall River Entrance

NPS

When is the Transponder Lane Open?


The park's transponder lanes are open year-round. When RMNP's timed entry system is in effect, the Transponder Lane will be closed between the hours of 9 a.m. and 2 p.m. (from late May to mid-October).

During this time of the year, visitors with transponders are welcome to use the Transponder Lane before 9 a.m. or after 2 p.m.

 
Transponder Lane Sign

NPS

Important Things to Know:

  • The cost to purchase a new transponder is $15. One passholder can purchase only one transponder.
  • You must have a valid resident park entrance pass (such as an RMNP Annual pass, America the Beautiful Resident Annual, Senior, Access, Military, Veterans, Volunteer, or 4th Grade Pass) to purchase a transponder. Passholders must bring their park entrance pass with them each time.
  • Transponders are valid for one year from the date of purchase. They can be renewed each year for $5

  • Transponders must be affixed to the inside, upper right-side of your vehicle's windshield. If your windshield has tinting along the top, place the transponder just below the band of tint.
  • If a transponder becomes detached from your vehicle's windshield, they will no longer work and a new one must be purchased.
  • Transponders are non-transferable, non-removable, and non-refundable. Transponders cannot be moved once affixed to your windshield. If moved, they will not work and you will have to purchase a new device.

 
View of a transponder's back side, showing the device 10-digit ID number

I Have a transponder that is expired. How do I renew my transponder?

Great question! Please come in person to Beaver Meadows Visitor Center on any Sunday, between the hours of 9 a.m. to noon or 1 p.m. to 4 p.m.

You will need two things with you when you come to Beaver Meadows Visitor Center:

1. Your valid park entrance pass (your annual or lifetime park pass). You must bring the pass with you. A photo of your pass or your pass number will not be accepted.

2. A photo of your transponder, showing the 10-digit transponder number on the back side of the device, affixed to your windshield

  • You can write down and bring the transponder number with you, but it is better to bring a cell phone photo of your transponder. With a photo, it is easier for park staff to pull up your account.

The cost to renew your transponder is $5.00

 

Questions & Answers on Rocky Mountain National Park's Transponders & Transponder Lane

Last updated: February 11, 2026

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Contact Info

Mailing Address:

1000 US Hwy 36
Estes Park, CO 80517

Phone:

970 586-1206
The Information Office is open year-round: 8:00 a.m. - 4:00 p.m. daily in summer; 8:00 a.m. - 4:00 p.m. Mondays - Fridays and 8:00 a.m. - 12:00 p.m. Saturdays - Sundays in winter. Recorded Trail Ridge Road status: (970) 586-1222.

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