Aerial and topo coverage is up to 1 meter/pixel (1 ft/pixel overzoom) throughout the continental US
(limited to availability and coverage of Terraserver-USA.com).
Color imagery is available in the Seattle, WA area.
Click here to see color coverage map.
More info on terraserver-usa.com site.
Relief Maps cover whole world at reasonable resolution. For some US states
(California, Nevada, Idaho, Colorado, Montana, Utah, Wyoming and Hawaii), QuakeMap allows zooming in to a larger scale
(up to about 150 ft/pixel).
