Arkansas and Missouri could be at odds with the true ownership of Mammoth Spring, the largest spring in Arkansas, and the seventh-largest in the world. The mouth of the spring is in Arkansas (only 500 feet from the MO/AR border), but the recharge area belongs to Missouri. For now, the states are in agreement, the second-largest spring in the Ozarks belongs to Arkansas. Almost ten million gallons of water pump out of Mammoth Spring every hour. A hydroelectric dam harnesses the massive power of this water. In 1957, the dam,…
