Wells, Logs, Cores (new menu) - oil & gas wells, formation tops, rock cores and water well logs for 9 states, plus USGS cores nationwide. Click a well for its record.
Faster geochem - assays now load from our own copy, with a new Filter & rank by element.
Faster LIDAR - tiles you've seen stay in your browser.
Faster Mines and Prospects - now hosted locally, with a new Filter by commodity, lode, and placer.
USGS throttles services at night and on weekends. Blurry LIDAR tile? Right-click it (or long-press) to reload.