The Trump administration will move the Bureau of Land Management headquarters from Washington, D.C., to Grand Junction, Colo., Senator Cory Gardner said Monday. It is a move that would put top officials closer to the lands they manage but farther from government policymakers.

Mr. Gardner, Republican of Colorado, has pushed for the change for years, and called it a victory for communities in the West.

“The problem with Washington is too many policymakers are far removed from the people they are there to serve,” he said in a statement. “Ninety-nine percent of the land the B.L.M. manages is west of the Mississippi River, and so should be the B.L.M. headquarters.”

Others saw more political motivations behind the decision, believing the true intent was to weaken the department. Representative Raúl M. Grijalva, a Democrat from Arizona and the chair of the National Resources Committee, said the move was part of what he considered the administration’s agenda to hand over public lands to fossil fuel companies.