FIGURE 2.1 Illustration of the blanket and quilt metaphor and how the two components complement each other. The blanket covers holes in the quilt (1), and the quilt provides data and updates to the blanket (2). SOURCE: Susanna Baumgart, University of California, Santa Barbara.


A national map as conceptualized by the USGS is justified and timely. Authority for such an enterprise is already delegated, yet the undertaking will require a cultural shift in the way that the USGS approaches its mapping. The future of mapping in the United States depends on forging partnerships among all levels of government and the private sector.

The National Academies | 500 Fifth St. N.W. | Washington, D.C. 20001
Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement