Early Native American Gardening
What proportion of the prairies of the West may be assigned as falling under the inference of having been abandoned fields, may constitute a subject of general speculation. It appears to be clear that the great area of the prairies proper is independent of that cause. Fire is the evident cause of the denudation of trees and shrubs in a large part of the area between the Rocky and the Allegheny mountains. Water comes in for a share of the denudation in valleys and moist prairies, which may be supposed to be the result of a more recent emergence from its former … Read more