A plan to pipe water to Las Vegas from rural Nevada could cost more than $2 billion, according to a preliminary estimate released by the Southern Nevada Water Authority. The plan includes 461 miles of pipeline, four pumping stations, and 200 miles of power lines that would be built in rural Clark, Lincoln, and White Pine counties over the next decade.

Water authority officials said the project could supply the Las Vegas Valley with at least 240,000 acre-feet of water per year, more than two-thirds of its annual allotment from the Colorado River. The water is being sought to supply Southern Nevada's growing population and reduce dependence on the Colorado, which supplies about 90% of the region's drinking water.

A slightly smaller version of the project would omit the Snake Valley groundwater basin in White Pine County, reducing the pipeline's length to 416 miles and the cost to about $1.88 billion.