Mammoth Spring State ParkState Parks
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Mammoth Spring State Park

4.8(4.1K)google
4.6(20)yelp
Free(Arkansas State Parks charge no general entrance fee; park trails and the visitor center are free. Stepping inside the historic Frisco Depot Museum costs $2.00 for adults and $1.00 for children.)
Nature

Overview

Mammoth Spring State Park is a 62.5-acre (25.3 ha) Arkansas state park in Fulton County, Arkansas in the United States. The park is located surrounding National Natural Landmark of the same name to provide recreation and interpretation for visitors. The park offers fishing, boating and hiking in addition to an Arkansas Welcome Center and restored 1886 Kansas City, Fort Scott and Memphis Railroad (later the St.

Practical Info

Mon8:00 AM – 5:00 PM
Tue8:00 AM – 5:00 PM
Wed8:00 AM – 5:00 PM
Thu8:00 AM – 5:00 PM
Fri8:00 AM – 5:00 PM
Sat8:00 AM – 5:00 PM
Sun8:00 AM – 5:00 PM
Suggested Duration2-3 hours
Best TimeThe summer months from May to September are spectacular. Arriving between 9:00 AM and 11:30 AM on a clear morning is highly recommended; the early sun directly illuminates the massive, deep emerald basin of one of the world's largest single-outlet natural cold springs, flashing vibrant turquoise hues over the pure trout-filled pool.
Getting TherePerfectly positioned on the northern state border at 17 US-63 in Mammoth Spring. Driving is exceptionally straightforward: follow US-63 north straight into the town center. The state park's entrance and its historic 1886 Frisco train depot will rise clearly on your right, offering an expansive, complimentary paved visitor parking lot.

Travel Tips

  • The central spring upwelling discharges 9.78 million gallons daily at a perpetual 58°F with violent, hidden undertows. State conservation laws enforce an absolute ban on swimming or wading; entering the water triggers immediate arrest and heavy fines.
  • The legacy hydroelectric dam and stone fishways lack safety guardrails and are heavily coated in slippery river moss. Crossing boundary chains or sitting on masonry gates for photography is a preservation crime investigated via continuous remote surveillance.
  • The vintage Frisco Depot museum retains its historical elevated timber framing without passenger elevators. Constrained aisleways and uneven floorboards completely block oversized double strollers and non-motorized medical wheelchairs from entering the caboose.

Reviews

Positive
  • An absolutely breathtaking natural wonder! As one of the world's largest cold springs pumping millions of gallons hourly, it is visually stunning.
  • The state park charges zero entry fees, and beautifully preserves an authentic, historic 1886 vintage Frisco train depot museum.
  • The loop trail around the massive spring pool is flat and easy, beautifully lined with shaded picnic pavilions and pristine ADA restrooms.
  • Prickly with pristine wildlife; massive schools of trout swim in crystal waters, and bald eagles are frequently seen soaring above.
Heads up
  • Peak summer or autumn foliage weekends bring a heavy influx of road-trippers, leaving the main parking lots completely full.
  • Because it's a strictly protected ecological water source, open-air swimming or wading is totally banned, disappointingly for some.
  • The signature historic rail depot museum closes early at 5:00 PM, leaving late-afternoon arrivals locked out of interior exhibits.
  • Situated deeply on the rural state border line, the remote location lacks high-end hotel infrastructure or diverse dining options nearby.