Description - Park facilities include an information center with exhibits on the area's rich history and natural resources, picnic sites, a standard pavilion, trail, playground and ball field.
- Mammoth Spring State Park has Arkansas's largest spring that flows nine million gallons of water hourly. Forming a scenic 10-acre lake, it then flows south as the Spring River, a popular trout and float stream. Near the spring, a beautifully restored 1886 Frisco depot houses a collection of railroad memorabilia. The baggage room displays local history exhibits, and just outside is a Frisco caboose
Recreation - Mammoth Spring State Park offers camping, picnicking, hiking, boating, fishing, and a touring a restored train depot.
Climate - Arkansas has a temperate climate with the coldest temperatures near freezing during December, January and February. Daytime highs for these months usually reach 55 degrees F. Spring and fall temperatures are very mild with lows dipping to 44 degrees F and highs reaching 70 degrees F. July and August are the hottest months of the year with average temperatures reaching 90 degrees F. June and September average temperatures usually reach into the mid-eighties. Spring and winter months are the wettest of the year.
Mammoth Spring State Park is located along the border of Arkansas and Missouri in the Ozark Mountains Region on northern Arkansas. The park is on U.S. 63 in Mammoth Spring.