The National Park Service is currently restoring the massive Kelso Depot, a beautiful Mission train station unused for 20 years (Kelso was once a busy mining town, but the population today is closer to a dozen). The NPS is in the process of turning the two-story structure into the primary information center and museum for the Mojave National Preserve, the area where three deserts - the Great Basic, Mojave and Sonoran - come together. The visitor center is no small affair; it will be the primary information center for one of the largest NPS properties outside of Alaska, at almost 650,000 acres.