In 1804, Lewis and Clark traveled the meandering Missouri River, in search of an all-water route to the Pacific Ocean. Along their journey, they identified new plants, new animals and new territories. Today, Lewis and Clark would not recognize most of the Missouri River.

The mighty Missouri River — part of the longest river system in the United States — is in trouble. According to the environmental group American Rivers, the Missouri River, the 2,500-mile, slow-moving river traveled by Lewis and Clark in 1804, is one of the most endangered rivers in the United States. The river is two-thirds narrower and 127 miles shorter than it once was, and the braided channels, islands and sandbars are largely gone. As a result, dozens of native Missouri River species risk extinction.

Why is the Missouri River important? How does the river affect transportation systems, recreation, power, food production and distribution and the environment? What are the pros and cons of revitalization plans? Which is best for people in towns that depend on the river?

In this WebQuest, you will work through these issues, determine different viewpoints on the river dilemma and propose a way to resolve the dilemma.