Indianapolis

City of Indianapolis
Eagle Creek Park
This city park, on the Eagle Creek Reservoir, encompasses 1400 acres of water and 3900 acres of forest.  “Eagle Creek Park is one of the largest city parks in the nation, offering unmatched opportunities for recreation, enjoyment, and discovery of nature only minutes from downtown Indianapolis.  This is their website.   Call the park 317-327-7110 or the Earth Discovery Center 317-327-7148 to learn more about their trails.   Trail map.
Wheelchair AccessibleThey sent this helpful response to my inquiry via facebook:  “There is an old paved road that is now an accessible pedestrian trail that runs north of the Ornithology Center – on the map it’s the dotted line that goes from the Ornithology Center to the Blue Trail. It’s along a high bluff, so you get a nice view of the reservoir in a few spots, and it goes through some nice, shady older forest. It does have one section that can get some standing water after heavy spring rains, but is usually dry the rest of the year. The section of the Blue Trail that it connects to is a gravel road that is closed to vehicle traffic – probably pretty bumpy for most wheelchairs, but might be accessible to some. There is also an accessible access to the overlook/fishing area at the Marina.
Most of the other hiking trails are compacted gravel and rock trail mix – some smaller or all-terrain type wheelchairs might do ok on flatter portions of them, but larger or motorized wheelchairs would probably have difficulty. Most of the park roads also have a paved pedestrian strip along the side, but it is right next to park traffic.”