triangulation network from Mobile Bay by the Mississippi River delta.1862 – Historic Reproduction
(Each image is professionally and digitally cleaned of artifacts such as color bars and extra borders prior to printing.)
Description
A window into the past: triangulation network from Mobile Bay by the Mississippi River delta.1862, preserved in this historic image. It comes from the Snapshots of the Past collection, curated over 25 years for its historical value.
The framed print arrives ready to hang; the unframed option suits custom framing. Perfect for a home, office, library or classroom wall, and a gift with a story behind it. Free shipping in the lower 48 states. Snapshots of the Past, founded in 2001, has served tens of thousands of customers worldwide.
triangulation network from Mobile Bay by the Mississippi River delta.1862
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A triangulation network that reaches from Mobile Bay to the Mississippi River delta is a rare kind of record, since it ties two distant Gulf coast landmarks into a single system of measured angles. Surveys like this, drawn in 1862, fixed the exact positions of headlands, channels, and shoals along the shore. That work had practical value: after Union forces took New Orleans that spring, navies and army engineers needed accurate charts to move ships and troops through the shallow waters and barrier islands of the region. Coast Survey work continued through the war for this reason.
| Original scan | 10,087 × 6,010 px · prints to 34 × 20 in at 300 dpi |
|---|---|
| Reference | triangulation network from Mobile Bay by the Mississippi River delta.1862 |
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