U.S. Department of Agriculture1. Use characteristics, visitor preferences, and conflict between horse users and hikers in the Charles C. Deam Wilderness Area: 1990-1991 visitor survey data
- Author(s):
- Watson, Alan E.; Daigle, John J.; Armatas, Chris A.; Campbell, Carly J.
2. High resolution land cover for Chicago Region (2010)
- Author(s):
- University of Vermont Spatial Analysis Laboratory
3. Urban tree database
- Author(s):
- McPherson, E. Gregory; van Doorn, Natalie S.; Peper, Paula J.