New map rendered by Andrew Hill shows the directional flow of 250,000 rivers in the continental United States.

By Liz Kimbrough A new study published in Nature unveils the mysterious world of microbial life shaping the rivers that millions of Americans depend on for drinking water. The research spans waterways ...

New 3D maps created by geographer Robert Szucs show not only the rivers, as many maps do,... Very cool 3D maps show river basins in U.S., Europe Seattle Post-Intelligencer Logo Hearst Newspapers Logo ...

The National Oceanic and Atmospheric Administration will no longer print traditional lithographic charts of U.S. waters after next April. The agency will still map waterways for rocks, shipwrecks ...

A CSU-led study mapped microbiomes in rivers covering 90% of U.S. watersheds, showing microbes’ roles in nutrient flow and contaminant processing. Findings support the River Continuum Concept and ...

The map could benefit sportfishing enthusiasts, boaters, outdoor explorers and map lovers. It measures approximately 35 inches by 57 inches and folds down to 9 inches by 11 inches.

The map this year adds more than 100 miles of streams across the state, all current habitats for sensitive, threatened or endangered fish. Skip Navigation Share on Facebook ...