Geospatial Data - United States

Author Date
Canada - United States Boundary International Boundary Commission
Commission for Environmental Cooperation (CEC) Commission for Environmental Cooperation
Data.gov - United States geospatial datasets U.S. Government
Great Lakes Aquatic Habitat Framework data Great Lakes Aquatic Habitat Framework
Open Data Repositories - US and International
Shapefiles of Canada, the United States, and the world Statistics Canada, United States Census Bureau
World Trade Center and Pentagon Disaster Area i-Cubed 2001