Carla Luebbe
Director ARC of Platte
County, NE reports:
A great benefit from the National Forestry & Wildlife Division. You may or may not know about. It is a free lifetime access pass for any person with a disability or for the caregivers of a person with a disability. It allows access to ALL national parks for free, and there are also 50% discounts on things such as campsites etc.
Find more information at:

http://store.usgs.gov/pass/access.html
Thanks Carla!