Diamonds can only be found in a few places in the U.S. and one of those places is Arkansas. A major fault line cleaves the state from the north-east (near the site of devastating earthquakes almost 200 years ago) to the south-west (near Crater of Diamonds State Park). Seismic tumult further raised the Altus appellation to almost 3000 feet above sea level. Altus means “high” in Latin and this is the highest area in Arkansas.