Question: The McDermitt Caldera is a large, oval-shaped caldera west of McDermitt, McDermitt is an unincorporated community straddling the Nevada–Oregon border, in Humboldt County, Nevada, and Malheur County, Oregon, in which country?
Sentence (from "McDermitt, Nevada–Oregon"): The last mining operation closed in 1990, resulting in a steady decline in population.
Relevant evidence: No