Links:
USDA Plant Hardiness Zone Map
Ecoregions of North America
Plants for a Future
Permaculture Design Notes
Soil and Health Library
Journey to Forever
CD3WD
Agromisa
Native Land
National Archives
USGS National Map
USDA Web Soil Survey
Google Earth
FEMA Flood Map
U.S Fish & Wildlife Service
USDA Forest Service
LandScope America
NatureServe
iNaturalist
Ecology Presentation
SunCalc
PDF Downloads:
Youtube: