Major cities like Pittsburgh, Cincinnati, and Louisville along its banks. - Longest river entirely in Texas. - Watershed: 45,600 sq miles. - Famous for reservoirs like Lake Possum Kingdom.

Or where it is going to? My name is Seren and today I'm investigating the UK's longest rivers. This is the River Severn, and at 354km long, it's the longest river in the UK. It starts here in ...

These are the 10 longest rivers in Ohio. Start the day smarter ... Its drainage basin extends over 15 states. From flowing to floes: People walked across a frozen Ohio River in 1977.

However, these rivers—and all that depends on them—are increasingly threatened by infrastructure development, extraction (especially for agriculture), and pollution. We are losing our free-flowing ...

With a total length of 1,801 km, the Grand Canal is the longest as well as the oldest man-made waterway in the world. China's many rivers can be categorized as exterior and interior systems.