Mammoth Springs National Fish Hatchery Ozarks Region View Website Calculate Trip Get Directions Overview:The hatchery is one of the oldest, built in the Ozark foothills in northeast Arkansas due to the availability of cool gravity flow water from the world’s seventh largest spring and easy access to the railroad. The hatchery maintains the only captive spawning population of Gulf Coast striped bass in the world. Address: Mammoth Springs National Fish Hatchery U.S. 63 North Mammoth Spring, AR 72554 Phone: 870-625-3912 Fax: 870-625-3904 Website: www.fws.gov/mammothspring/ E-mail: mammothspring@fws.gov GPS: N36.4398025 W91.4966494 Connect: Save to foursquare Miscellaneous No Smoking On or Near: Spring River Comments david stinson · hernando, MS A beautiful place. A must see