Middle Atlantic Colonies: Defined by Water Access
Yes—the Middle Atlantic colonies were fundamentally shaped by water access. Their geography, economy, and strategic importance all flowed from it.
Coastal Access
- New York: World-class harbor (Upper/Lower Bay, Hudson, East River) — >500 miles waterfront
- New Jersey: 130 mi Atlantic coast + Delaware River/Raritan Bay
- Pennsylvania: Delaware River estuary → Philadelphia (major port)
- Delaware: Delaware Bay + Atlantic (381 mi shoreline incl. rivers)
Major River Highways
| River | Colonies Served | Role |
|---|
| Hudson | NY, NJ | North–south artery; Albany–NYC; fur, grain, later Erie Canal link |
| Delaware | NY, NJ, PA, DE | Philadelphia port (largest in colonies); Trenton head of navigation |
| Susquehanna | PA, MD | Chesapeake access; coal, lumber, grain |
| Potomac | MD, VA, PA | Western Maryland, Georgetown/Alexandria ports |
| Raritan / Passaic / Hackensack | NJ | Iron, grain, local transport |
Economic Consequences
- Port cities dominated: NYC, Philadelphia, Baltimore, Perth Amboy, New Castle
- Export economy: Wheat, flour, flaxseed, iron, lumber → Caribbean, Europe
- Import/distribution: Manufactured goods, molasses, salt, enslaved Africans
- Shipbuilding: Philadelphia (1st), NYC, Baltimore — oak, pine, naval stores
Strategic Importance
- British HQ (NYC, 1776–83) — harbor control = continental control
- Washington's Delaware crossing (1776) — river as tactical corridor
- Erie Canal (1825) — Hudson–Great Lakes link cemented NYC supremacy
The Middle Atlantic wasn't just near water—it was organized by it.
Wanderlust World