Map of study area (IMAGE)
Caption
Researchers analyzed accounts of historic tallgrass prairie fires in eight Midwestern states. Map of the central U.S., with blue-green, dark green and light green zones demarcating the original extent of the tallgrass, midgrass and shortgrass prairies, respectively. Red dots indicate the approximate location of each fire reported in the study.
Credit
Photo by Michael Vincent
Usage Restrictions
Credit required
License
Original content