The Discoverer Stronghold AT is Cooper’s Off-Road All-Terrain tire, built for the drivers of pickups, crossovers, and SUVs looking for dependable traction off-road that can still offer some comfort on the pavement. Purpose-built to conquer dirt, gravel, mud, and the challenges of the city streets. Cooper offers a 60,000-mile treadwear warranty with this model. The Discoverer Stronghold AT’s specialized rubber compound forms the base of its next-generation all-terrain tread pattern. This design features tough, interlocking tread blocks for off-road action, while adjusting the individual lug designs for improved tread-life and resistance to irregular wear. It meets industry severe snow service requirements qualifying for the three-peak mountain snowflake (3PMSF) symbol.