Philadelphia, where the Declaration of Independence was signed
225 years ago on July 4, 1776, lies in the center of this image
from NASA's Multi-angle Imaging SpectroRadiometer (MISR). This
true-color view of the northeastern United States, taken from the
instrument's nadir, or downward-looking, camera includes a
fitting display of the reddish colors of soils, grayish-whites of
urban areas and clouds, and blue hues of water.
Larger cities, including New York, Newark, Philadelphia,
Wilmington, Baltimore and Washington D.C., are visible from upper
right to lower left. The bright sands of the New Jersey shoreline
and a pattern of highly reflective roads and bridges extend
northward along the coast from Delaware Bay. A popular tourist
destination for those wanting to avoid the crowds and main roads
is the Coastal Heritage Trail, a 440-kilometer collection of
historic and other points of interest developed by the National
Park Service and the state of New Jersey.
A portion of Pennsylvania's Appalachian Mountains are captured in
the upper left corner. The effects of folding and erosion on
these ancient, mostly sedimentary deposits are visible, and the
reddish colors indicate ironstone and iron-rich sandstone. The
southeast-flowing Susquehanna River cuts transversely across
these folded formations toward the Chesapeake Bay in Havre de
Grace, Maryland, where it provides 50 percent of all the
freshwater entering the great estuary. The waters of the
Susquehanna originate at Otsego Lake in New York and meander
along 700 kilometers until reaching Chesapeake Bay and the sea.
This image was acquired on October 11, 2000. It covers an area
334 kilometers x 328 kilometers. North is
at the top.