Plan your trip with the help of the official Grand Canyon National Park 2012 trip planner. It is a useful source of information and maps of both South and North Rim. You can download and print the trip planner to a standard letter-sized paper.
You will also find useful to read the Grand Canyon National Park accessibility guide.
Once you arrive at the park a paper copy of the accessibility guide will be available to you upon request. You can request it at these locations: the Grand Canyon Visitor Center, Yavapai Museum of Geology, Kolb Studio, Verkamps Visitor Center, Tusayan Museum, Desert View Visitor Center, or North Rim Visitor Center.