Mobility Devices

Hiker using a Mountain Trike off-road wheelchair on a trail in Zion National Park
Visitor enjoying the Emerald Pools hike using his Mountain Trike in Zion National Park

Courtesy Dave Gillespie

Wheelchairs and Mobility Aids


Many kinds of devices improve mobility for the
1 in 4 Americans with a Disability. From walkers, canes, crutches, or braces to traditional manual or power wheelchairs to off-road mobility wheelchairs or electric scooters.

The Americans with Disabilities Act (ADA) definition of a wheelchair (Title V Section 508c) is:

  1. Designed solely for use by mobility impaired person for locomotion, and

  1. Suitable in an indoor pedestrain area.

Mobility devices have come a long way in recent years, spanning a variety of shapes, sizes, and new technology. Those devices that meet the definition of a wheelchair are allowed anywhere foot travel is allowed in our National Parks, this includes the opportunity to participate in Wilderness experiences.
Man gazing across a snowy mountain landscape on his Action Tract Off-road Mobility Device
Man using his Action Tract chair on a snowy mountain road

Image courtesy of Jason Stoffer

Other Power-Driven Mobility Devices (OPDMD's):


If you answered....

“NO” to #1- device is not designed solely for use for a mobility impaired person

and/or

“NO” to #2- device is not suitable in an indoor pedestrian area; wider then 36”, tread not suitable and/or gas-powered.



Any mobility device powered by batteries, fuel, or other engines, that are not primarily designed for individuals with mobility disabilities, that are used by such individuals for the purpose of locomotion are classified as an Other Powered-Driven Mobility Device (OPDMD).

OPDMDs examples include golf cars/carts, electronic personal assistance mobility devices, such as the Segway ® Personal Transporter (PT), or any mobility device that does NOT meet the definition of a wheelchair and is designed to operate in areas without defined pedestrian routes.

Last updated: July 27, 2022