Klamath Basin Native Americans and environmental activists took their fight against dams to Salt Lake City Tuesday, demonstrating outside offices of Rocky Mountain Power.

About a dozen demonstrators outside One Utah Center called for the removal of four dams on the Klamath River, which winds through southern Oregon and northern California. The building at Main Street and 200 South is headquarters for Rocky Mountain Power, which serves Utah, Idaho and Wyoming.

Rocky Mountain Power's connection to the Klamath Basin controversy is that its parent company, PacifiCorp, does business as Pacific Power in Oregon, Washington and California; the utility operates Klamath River and Klamath Lake power projects. PacifiCorp in turn is owned by MidAmerican Energy Holdings Co.

The protesters are on their way to the Omaha, Neb., home of Warren E. Buffett. One of the companies the billionaire investor owns is Berkshire Hathaway, which controls the majority of stock in MidAmerican.

Native Americans held signs calling for removal of the dams. One placard said "CLEAN WATER IS GOOD BUSINESS." Some chanted during the protest. When someone shouted "Save the Klamath!" from a nearby building, they cheered.

Parked in front of the headquarters on 200 South were two large dugout canoes on trailers, which are part of the tour to Omaha.

"We're concerned with four dams on the lower Klamath River," said Soren Jespersen of the Friends of the River organization, based in Sacramento. The oldest of the dams was built about 80 years ago, he said, and others are outdated.

"We're on a pilgrimage to Omaha to tell Warren Buffett," he said. The protesters want to tell him his subsidiary is operating dams that are killing salmon and threatening tribal cultures and rural communities, he said.

"We think Warren's a good guy. He recently donated a big chunk of change to the Bill Gates Foundation. He lives in the same house he grew up in, and we think he'll welcome us with open arms."

Helping to hold one large sign that featured a salmon were Luana Hillman and her nephew, Ike, both of Orleans, Calif., who are of the Karuk Tribe. The aunt wore a traditional hat, which was like a basket, as well as necklaces of beads and shells.

"It's killing our fish, killing our way of life," Luana Hillman said. Algae that builds up behind the dams is toxic to some species in the river system, she added.

Ike Hillman, 21, said impounded water grows hot behind the dam, and when it is released it heats up a four-mile stretch below it. That's bad for fish, he said.