Along New Mexico's Middle Rio Grande, pueblo tribes are working to bring back the disappearing bosque - the cottonwood gallery forest that once lined the river, offering habitat, shade and leafy bounty to a dry landscape.
In the Northwest, the Federal Energy Regulatory Commission is fighting with the National Marine Fisheries Service over relicensing three dams in Hells Canyon on the Snake River that the fisheries service says are killing salmon.
Rafter and river advocate Steve Harris tries to work with local farmers to preserve the Rio Grande in New Mexico.
The Army Corps of Engineers backs away from a revised environmental impact statement that would have changed the way it operates six Missouri River dams.
On river trips, Richard Ingebretsen of the Glen Canyon Institute talks about Lake Powell and introduces people to the idea of removing Glen Canyon Dam and resurrecting the Colorado River's drowned canyons.
In his own words, Orville Campbell, who spent 30 years working for the companies that own the Elwha dams, talks about the movement to take down those dams.
For 30 years, activists have been working to remove two dams and restore salmon runs on Washington's Elwha River, and now the goal is in sight - if the money comes through from Congress.
The Forest Service's right to demand "bypass flows" - leaving enough water in streams tapped for human uses to keep fish and wildlife healthy - may not survive the Bush administration.
A revised and scaled-down version of Colorado's controversial Animas-La Plata water project appears poised to become reality at last.
Maps reveal that the Bureau of Reclamation and Fish and Wildlife Service have very different views on water use that have long made it difficult for the agencies to work together.
Many Klamath Basin farmers are drilling wells to supplement their water supply, but more wells may only exacerbate the water shortage by depleting the aquifer.
In the Klamath River Basin on the Oregon-California border, farmers, Indians, wildlife refuges and now three endangered fish are fighting over scant water in a dry year, and some say the Endangered Species Act only makes the situation worse.
The EPA has taken Idaho rancher John Simpson to court for clearing debris and beaver dams out of a channel of the Salmon River, although endangered salmon have since spawned in the channel, complicating the issue.
More than 7,000 gallons of diesel fuel accidentally dumped in a water-quality monitoring well at Copper Mountain ski resort, Colo., have yet to be found.
The Coeur d'Alene Tribe and the State of Idaho are fighting in the Supreme Court over Lake Coeur d'Alene, with the tribe claiming partial ownership of the lake under a 19th century treaty.
Under the Clean Water Act, aquatic pesticides can no longer be used in public waterways without a federal permit.
The Metropolitan Water District's plan to tap aquifers at Cadiz, Calif., for Los Angeles could harm the fragile groundwater system that sustains the desert, including the Mojave National Preserve.
Under the "4.4 Plan," California will begin a water diet, designed to reduce the state's use of Colorado River water over the next 15 years to the 4.4 million acre-feet it has long been allocated, but always exceeded.