|
Virgin Forest in the U.S.: |
|
|
|
|
|
|
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)
Clearinghouse on Forests & Corporations
