Browse Items (558 total)

Quarry10.jpg
An early use of a core drill to check if it was worthwhile to open a quarry on a site. Before use of the drill came into operation, it was pretty often just educated guesswork where to site a new quarry.

BridgeLehighPIC.jpg
If you look closely, you can see the men peering out through the damaged opening.

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GapDamPIC.jpg
The timber crib dam south of Lehigh Gap that supported navigation on the Lehigh canal

RiverPIC.jpg
Not exactly sure of the location of this view along the river.

CanalWoodenBridgePIC.jpg
Looking north. To the left of this bridge over the canal was the bridge over the Lehigh River that connected Slatington and Walnutport.

CanalWoodenBridge2PIC.jpg
This photo is taken a bit further south of the bridge.

CanalPIC.jpg
I think that this is looking south along the canal, below Walnutport.
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