The maps shown here cover the
rest of the century with at least one map per decade.
PENNSYLVANIA, published and printed by the Thos. D.
Murphy Co., Red Oak, Iowa. The map occupies about two-thirds
of the sheet and contains insets of Pittsburgh and
Philadelphia at the top. At the bottom is a 1951 calendar
which is the date used here, although it was probably
printed in 1950 as advertisement for an insurance company
in Lancaster. Main roads are shown with bright red lines,
although this obviously is not a road map. The verso has
a gazetteer with 1950 census. Scale: 1 inch = 15 miles.
Size: 15.5 x 20 inches (map).
GEOLOGIC MAP OF PENNSYLVANIA, published by the
Commonwealth of Pennsylvania, Department of Internal
Affairs, Topographic and Geological Survey, printed by
Williams & Heintz Map Corp., Washington. This is a
small section of a huge map and shows the Allegheny front
in the Altoona region. The colors denote the surface
geological layers. Blank verso. Scale: 1 inch = 4 miles.
Size of complete map 58 x 82 inches.
ALLEGHENY RIVER - CHART NO. 1, a river navigation map
showing a section of the river through Pittsburgh. This
map is from Allegheny & Monongahela Rivers
Naviagtion Charts, published by the Corps of
Engineers, Pittsburgh District 1974, which is a 40 page
set of charts used by river pilots. Of course, this set
is now out of date.
(Southwestern Pennsylvania) This is an infared image
taken from space by the Landsat satellite and published
by the United States government. It is printed on heavy
photographic paper and dates from the mid 1980s. Only
part of the complete image is pictured and shows the
Youghiogheney River in southwest Pennsylvania running
northwest from the Youghiogheney Reservoir to join with
the Monongahela River partially shown at the left edge.
Vegetation appears red in this image and reflective
surfaces in white. The white dots are clouds hung up on
the ridge tops. The dark, splotchy areas are towns; the
one in the center of the image next to the river is
Connellsville. Uniontown is slightly south and Greensburg
is at the top of the image. Blank verso. Scale: 1 inch =
4 miles. Size of complete image 24 x 30 inches.
PENNSYLVANIA'S HERITAGE REGIONS, published by the
Pennsylvania Department of Conservation and Natural
Resources . A colorful figurative free map advertising
state tourist attractions with no geographical detail.
Text on the verso. Scale: 1 inch = 15 miles. Size: 18 x
COMMONWEALTH OF PENNSYLVANIA LAND COVER MAP 66, Interior-Geological
Survey, Reston VA 2000. U. S. Department of the Interior,
U. S. Geological Survey. This map displays types of land
cover using 15 different colors and categories. The major
categories are Developed (reddish), Forested (greenish),
Cultivated (yellowish), Barren (grayish), and Water (bluish).
It was prepared in partnership with the Pennsylvania
Topographic and Geologic Survey and is available from the
state Department of Conservation and Natural Resources or
from the U. S. government. Only a section around
Pittsburgh from this large and beautiful map is shown
here. Blank verso. Scale: 1 inch = 8 miles. Size: 26 x 40
GEOLOGIC SHADED-RELIEF MAP OF PENNSYLVANIA, compiled by
Christine E. Miles, Interior-Geological Survey, Reston VA
2003. Department of Conservation and Natural Resources,
Bureau of Topographic and Geologic Survey, Pennsylvania.
This is a state map issued jointly with the U. S.
government. It displays types of surface structure using
both color and shaded relief. Streams and outlines of
counties are also shown. This is the latest successor to
Henry Darwin Rogers' classic 1858 geological map. This
map is number 67 and is a companion to the one above.
Blank verso. Scale: 1 inch = 8 miles. Size: 32.5 x 44