Mountain Bikers

Please follow the International Mountain Bike Association Guidelines.


• To hikers, runners & horses.

• Downhill bikers yield to uphill bikers.

• Stop! Yield with one foot on the ground and two wheels on the trail when yielding to hikers, runners & bikers. Don’t ride parallel to the trail.

• When encountering another user from behind, slow down, announce your presence and ask to pass.

• Promote a good trail ethic – Always slow down and say hello when encountering other users.

E-bike Use  

E-bike use on the Ridge to Rivers trail network is restricted to trails and roads that currently allow motorized use. BLM, Forest Service, Ada County and Idaho State Department of Fish and Game prohibit e-bikes and other motorized devices on all non-motorized trails that cross their jurisdictions. Approximately 52 miles of motorized trails and primitive roads are accessible for e-bikes. 

Trails and Roads open to e-bikes and other motorized devices: 

  • 8th Street Extension
  • Rocky Canyon Road
  • Boise Ridge Road
  • Lucky Peak Road
  • Ridge Road       
  • E. Highland Valley Road
  • 8th Street Motorcycle Trail
  • Hulls Ridge Trail
  • Femrite’s Patrol 

More information on these trails and roads can be found on the Ridge to Rivers map.

The City of Boise does provide an accommodation under the Americans with Disabilities Act (ADA) to individuals with a mobility disability to ride an e-bike as defined by the City of Boise on certain city-owned property with Ridge to Rivers trails. Users are asked to visit either the Boise Parks and Recreation Admin Office (1104 Royal Blvd.) or the Fort Boise Community Center (700 Robbins Rd.) to complete the accommodation process. Please bring the following: 

  • A valid state-issued disability parking placard or other state-issued proof of disability
  • Documentation from your e-bike purchase that outlines the power output of your e-bike motor (must be no more than 750 watts with a top speed of 20 m.p.h.)  

Questions? Please call the Boise Parks and Recreation main line: 208-608-7600 or email BPR@cityofboise.org 

There’s horses in them hills

Horses are part of Idaho’s heritage, and equestrians are welcome on Ridge to Rivers trails.  This can sometimes be a scary proposition for the equestrian rider sharing a narrow trail with a fast-moving mountain bike.  Horses and mules are prey animals. That means they think everything wants to eat them; even the hiker with a large, scary backpack and especially the fast-moving biker “chasing” them or encountering them on a blind corner.

What should you do if you encounter a horse rider?

  • If you approach from behind, slow down and shout a friendly hello.  Remain at least 25 feet behind the rider until they have an opportunity to allow you to pass safely – which they may request you do by dismounting and walking your bike.
  • If you approach from the opposite direction, stop at least 50 feet away, shout a friendly hello and step to the downhill side of the trail so that the horse can pass safely by.  Why the downhill side?  Horses tend to want to move uphill when spooked, so this ensures safety for both you and the equestrian.
  • Slow down when approaching blind corners, and EXPECT TO ENCOUNTER SOMEONE.  These can be dangerous situations, and will ensure safe passing for all – equestrians, mountain bikers and hikers. 

Control your speed

• Ride, don't slide. Do not skid.

• Don't cut corners or curves.

• Stay on the trail.

Blind Corners

  • Trails in the foothills often have limited sight distances.  It is imperative that you slow down when approaching any blind corners, to avoid collisions with hikers, equestrians and other riders.

Group Ride Etiquette

The Ridge to Rivers trail system is a wonderful place to ride by yourself or with friends.  The trails get a tremendous amount of use however, and can become quite congested at times.  If you ride with, or are organizing a group ride, please consider adopting the following recommendations to help minimize your impact on other riders and hikers using the trails:  

  • Ride in groups no larger than 10 or 12.  If you have a larger number of riders, please consider splitting your group up and either leaving at different times, or riding different loops.
  • Standard mountain bike etiquette is for the downhill rider to yield to the uphill rider.  However, imagine how many times a downhill rider will need to stop if she comes across a large group of uphill riders.  When you are riding as part of a large group, circumstances such as this need to be factored in when you encounter other trail users.  Please consider having your group yield to downhill riders, and remember to always yield to walkers and runners.

Brought to you by the City of Boise