U.S. Old-Growth Statistics

Virgin Forest in the U.S.:
Years 1620, 1850, 1920, and Today

World Old-Growth Statistics






Source of 1620, 1850, and 1920 maps: William B. Greeley, The Relation of Geography to Timber Supply, Economic Geography, 1925, vol. 1, p. 1-11.

Source of TODAY map: compiled by George Draffan, based on a map of the remaining roadless areas in The Big Outside: A Descriptive Inventory of the Big Wilderness Areas of the United States, by Dave Foreman and Howie Wolke (Harmony Books, 1992).




Higher resolution version of the first three maps (TAKES A WHILE TO LOAD)


Railroads & Clearcuts maps

Clearinghouse on Forests & Corporations