Top is an aerial of a section of Long Island City and bottom is a city map of the same section from 1879. The historical map has muted pinks and greens for the different areas and show streets and the river.

Lost Underground Rivers

Mark Altaweel

Cities like London and New York City have a long history of paving over rivers.

Shaded relief map showing the location of the Lena Delta above the Arctic Circle.

The Largest Delta in the Arctic

Caitlin Dempsey

The Lena Delta is a significant wildlife refuge and the largest delta in the Arctic.

Map showing major rivers in the world that form international borders.

Rivers as Borders

Caitlin Dempsey

23% of international borders are rivers.

Great Springs and the Roe River in Montana.

The Shortest River in the United States

Caitlin Dempsey

The shortest river in the U.S.: learn about Roe River in Montana, stretching only 201 feet.

Hurricane Laura Made This River Flow Backwards Temporarily

Caitlin Dempsey

When Hurricane Laura came onshore near Texas and Louisiana, its winds were so strong that it pushed the waters of the River Neches backwards for about 12 hours.

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