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Allegheny Portage Railroad
Allegheny Portage Railroad
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Individual Pictures (184)
A Train Pulling a Barge
A Trash Free Park Sign
A Tree Stump on a Hill
A United States Geological Survey Benchmark
A Vertical Sheave and Toothed Cogs
A View through the Skew Arch Bridge
A Wind Turbine at the Top of a Slope
A Woman on the Deck of a Packet Boat
A Wooden Floor
A Wooden Object on a Wooden Platform
A Wooden Table near a Fireplace
A Wooden Topographic Model
An Illustration of a Horse-Drawn Railroad…
An Illustration of a Worker Tying a Rope…
An Illustration of People Feeding Coal into…
An Illustration of People Working on an…
An Illustration of the Original Engine House
An Outdoor Amphitheater
Another Close-Up View of a Low Growing Moss
Another Section of Rails at the Summit Level
Another View of the Skew Arch Bridge
Arrows Painted on a Road Surface
Bare Trees along the Trail
Bore Holes in a Sandstone Block
Bore Holes in Sandstone Stairs
Clouds above a Bare Tree
Cracking Rock Splitting in Sheets
Damp Stones under the Arch of Skew Arch…
Drill Holes in Sandstone
Engine House Number Six
Engine House Number Six, with Sign
Fungus on a Log
Heating Elements to Melt Snow on the Roof…
Imitation Food on a Table
Large, Flat Pieces of Sandstone
Large, White, Double Doors
Multiple Wind Turbines
Railroad Tracks at the Summit Level
Railroad Tracks Running through a Tunnel
Rope Running through a Roller above a Horizontal…
Rope Running through a Roller above a Wooden…
Sandstone Ashlars Used to Construct a Bridge
Sandstone Ashlars Used to Form an Arch in…
Sandstone Boulders on a Hill
Seating at an Outdoor Amphitheater
Sheaves and Cogs in a Wooden Frame
Some Type of Low Growing Moss
Stone Stairs near the Skew Arch Bridge
The Arch of the Skew Arch Bridge
The Back Half of a Steam-Powered Locomotive…
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