A plan for designating thousands of miles of energy corridors in 11 Western states will be revamped under a settlement reached by federal land managers, environmental groups and one Colorado county.

The settlement was filed Tuesday in federal court in San Francisco. It must be approved by a judge.

A senior attorney with the Center for Biological Diversity says the landmark agreement is a step toward advancing renewable energy development in areas that make sense.

The environmental groups identified areas from Washington to New Mexico where wildlife habitat, historic properties and trails could be affected by corridors for power lines. The settlement puts agencies on notice that projects in those areas could be challenged.

The settlement also gives the federal government a year to set up a review system for determining whether corridors should be revised, removed or added.