South
Spring River
Live Conditions
Spring River — Mammoth Spring at Mammoth Spring
7-Day Flow
→ Stable
24-Hr Pressure
29.57 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
⛈️Thunderstorm
89° / 69°
Tomorrow
☁️Overcast
85° / 68°
Wed
☁️Overcast
82° / 61°
Thu
☁️Overcast
83° / 64°
Cold front incoming — go deep with nymphs, surface activity likely slow.
Weather by Open-Meteo · No API key · Updated every 30 min
What should I fish today?
One call. Specific to today's exact conditions on the Spring River.
9
Time of Day
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Spring River conditions.
🪰 Hatch Calendar
Spring River · June · Early Summer
Showing typical dates — water temperature data unavailable for live hatch predictions.
Select month
Sulphurs at peak (size 16-18) evenings. Caddis. Midges. Constant cold spring water keeps fishing strong through summer.
River Map
About Spring River
The Spring River begins at Mammoth Spring — one of the largest springs in the world, discharging a rock-steady ~270 CFS year-round at a constant 58°F. Stocked rainbow trout (and some brown trout) thrive in the cold spring-fed water for the first miles below the spring, before the river warms and transitions to smallmouth water further south. The Mammoth Spring gauge is among the most stable in the country — flows barely fluctuate season to season. A great year-round, beginner-friendly Ozark trout option.
Regulations
Arkansas fishing license + trout permit required (resident ~$10.50 + ~$10.00 trout permit = ~$20.50/year). Year-round season; standard trout regulations on the stocked rainbow section below Mammoth Spring. No special emergency regulations on the Spring River as of Feb 2026. Verify current rules at agfc.com before fishing.