Iron Butt Logo

Interstate 25 End to End
Version No. 1.02
Date last revised: October 10, 2020

©2020, Iron Butt Association, Sheridan, Wyoming
Please respect our intellectual property rights.  Do not distribute this document or portions therein, without the written permission of the Iron Butt Association.


To successfully complete this ride, you must traverse the entirety of this trip on I-25. For the purposes of E2E certification you must transit I-25 end points through the merge with I-90, Buffalo, WY and through the merge with I-10 just south of Las Cruces, NM. Use caution to remain on I-25 the entire route. Do not take peripheral highways or feeder routes off of I-25 to avoid traffic congestion.

It is recommended you create a route using the end points as waypoints ensure successful transit. 
I-25 Northbound:  Las Cruces NM I-10 Interchange to Buffalo WY I-90 Interchange
I-25 Southbound:  Buffalo WY I-90 Interchange to Las Cruces NM I-10 Interchange

Exercise routing caution through these cities to remain on the primary interstate:

i25 logo --Albuquerque, NM
--Denver, CO

There may be other cities where google maps will try to direct you off of I-25 because of traffic.  DO NOT TAKE THESE QUICKER ROUTES.  STAY ON I-25.

The google map link below was created using shaping points to follow the primary Interstate from each end point.  Depending on the device used and the current traffic conditions, google maps may direct you away from the correct Interstate route.  When you ride this I-E2E please rely on your own routing along the primary Interstate.  Exercise special caution to remain on the primary Interstate through the cities listed above.  You may rely on your satellite tracking device to PROVE that you took these in-city routes; however, if you have any doubts about the accuracy of functioning of these devices, you would be well advised to get a DBR along each of these in-city routes.

Suggested I-25 route

SpotWalla use is mandatory:

You must use a tracking device to record your entire actual ride route, and you must upload the track points to SpotWalla (Trips). You must provide the SpotWalla trip link for the ride’s track points when applying for your ride certification.  It is your responsibility to ensure your satellite tracking device functions correctly and the tracking data is uploaded to SpotWalla for the entire trip.  Check the device and SpotWalla settings before, during and after the ride. Be sure you comply with the SpotWalla Protocols listed here.