SALT LAKE CITY (AP) — The Trump administration is proposing an ambitious plan to slow Western wildfires by bulldozing, mowing or revegetating large swaths of land along 11,000 miles (17,700 kilometers) of terrain in the West.

The plan that was announced this summer and presented at public open houses, including one in Salt Lake City this week, would create strips of land known “fuel breaks” on about 1,000 square miles of land (2,700 square kilometers) managed by the U.S. Bureau of Land Management in an area known as the Great Basin in parts of Idaho, Oregon, Washington, California, Nevada and Utah.

The estimated cost would be about $55 million to $192 million, a wide range that illustrates the variance in costs for the different types of fuel breaks. Some would completely clear lands, others would mow down vegetation and a third method would replant the area with more fire-resistance vegetation.

It would cost another $18 million to $107 million each year to maintain the strips and ensure vegetation doesn’t regrow on the strips of land.

Wildfire experts say the program could help slow fires, but it won’t help in the most extreme fires that can jump these strips of land. The breaks could also fragment wildlife habitat.

An environmental group calls it an ill-conceived and expensive plan that has no scientific backing to show it will work.