On 8/31/06, Anthony <wikilegal(a)inbox.org> wrote:
2) These maps that were bought are not satellite
images, they are
[[digital raster graphic]]s (i.e. topographic maps). (source:
http://ransom.redjar.org/original_page.html)
3) They seem to cover only the United States (source:
http://libre.redjar.org/maps/data/ and
http://topomaps.usgs.gov/drg/duplicate_drg.html)
4) "USGS aerial photographs covering the United States since the
1950's and worldwide satellite data from the early 1970's to the
present can be ordered directly from the USGS."
(
http://erg.usgs.gov/isb/pubs/booklets/aerial/aerial.html) I have no
idea how detailed these are.
It's the entire set of 1:24,000-scale USGS topo maps. These maps
include every road, most hiking trails, and most buildings. They're
possibly the most detailed maps of the United States available
anywhere.
--
Mark
[[User:Carnildo]]