Mammoth Spring Welcome Center (click on a location for details) #17 Hwy 63 North P. O. Box 36 Mammoth Spring AR 72554 Phone: 870-625-7364 Fax: 870-625-3255 Manager: Adam Davis Asst. Manager: Carolyn Sigler Email: mam.tic@arkansas.gov Manager Email: adam.davis@arkansas.gov