A $1 million investment from Lilly Endowment has allowed the Indiana Department of Natural Resources to distribute 45 track chairs to each state park and the seven state park inns. The chairs are all-terrain motorized wheelchairs with continuous tracks that allow them to travel over rough terrain. The new chairs are free to use for visitors and must stay on specific areas of the park identified by the property. The money is part of a larger $50 million grant from the Endowment for upgrades across Indiana's state parks.