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Every place in the Hidden Current catalog, filterable by category and by whether you can lawfully go there.
Filter by category, or by access if you are trying to find places you can actually walk into. Every page states access first, and a closed site carries no directions.
Showing 6 of 98 places.
Soo Locks: The 21-Foot Step That Connects Lake SuperiorAt Sault Ste. Marie, ships rise and fall 21 feet between Lakes Superior and Huron, and 88% of U.S. domestic iron ore shipping depends on one lock.
Old River Control: The Floodgates Holding the Mississippi in PlaceIn central Louisiana, a set of Army Corps floodgates holds the Mississippi River in place. Without it, the river could jump to the Atchafalaya for good.
Eisenhower Tunnel: The Highest Point on America's InterstatesAt 11,158 feet, the Eisenhower-Johnson Memorial Tunnel carries I-70 under the Continental Divide and marks the highest point on the U.S. Interstate system.
Chicago River Reversal: The City That Made Its River Run BackwardIn 1900, Chicago opened a 28-mile canal that made its river flow away from Lake Michigan. In extreme storms, the river is still sent back into the lake.
Maeslant Barrier: The Giant Gates That Protect RotterdamNear Rotterdam, the Maeslant Barrier's two 210-meter steel gates wait in dry docks. In a major storm surge, they swing out to seal a 360-meter channel.
Duga: The Russian Woodpecker Near ChernobylThe Duga radar near Chernobyl, nicknamed the Russian Woodpecker, tapped across shortwave radio from 1976 to 1989. Its giant antenna still stands.