ROCK SPRINGS, Wyo. (AP) — Opponents of a $3 billion plan to pipe water from southwest Wyoming to Colorado now have lined up opponents in three states.

It appears that opposition is mounting to the proposal to tap water from the Green River, and the Flaming Gorge Reservoir it feeds, to help supply Colorado's populous Front Range.

The Rock Springs Rocket-Miner reports that local officials in Utah, and environmental groups in Colorado, have joined opposition in southwest Wyoming.

Concerns include fears that taking water from the river or Flaming Gorge Reservoir would hurt tourism and recreation.

The Army Corps of Engineers says a study of the pipeline plan won't be ready until 2016.