Ken Ivory, a Republican state representative from Utah, has been roaming the West with an alluring pitch to cattle ranchers, farmers and conservatives upset with how Washington controls the wide-open public spaces out here: This land is your land, he says, and not the federal government’s.

Mr. Ivory, a business lawyer from suburban Salt Lake City, does not fit the profile of a sun-scoured sagebrush rebel. But he is part of a growing Republican-led movement pushing the federal government to hand over to the states millions of acres of Western public lands — as well as their rich stores of coal, timber and grazing grass.

“It’s like having your hands on the lever of a modern-day Louisiana Purchase,” said Mr. Ivory, who founded the American Lands Council and until recently was its president. The Utah-based group is funded mostly by donations from county governments, but has received support from Americans for Prosperity, the group backed by the billionaire Koch brothers. FULL REPORT