← Back to Blog·June 17, 2026·11 min readRiver Guides
Jacks Fork River · Ozark National Scenic Riverways

Jacks Fork River
Float Trip Guide.

Live conditions, the best float sections by mile marker, the springs and the famous Jam Up Cave arch, the full outfitter and campground directory, and a built-in trip planner — your complete guide to floating Missouri's Jacks Fork.

Jacks Fork River hero
Length
44 mi
Difficulty
Class I–II
Region
Ozarks
Season
Apr–Jun
Manager
NPS (ONSR)
Headwaters
The Prongs
Typical distance
6–15 mi day floats; 25+ mi multi-day
Best for beginners
Alley Spring → Eminence (6 mi, 2–3 hr)
Primary gauge
Alley Spring · USGS 07065495
Recommended outfitter
Harvey's Alley Spring Canoe Rental
Live conditions

Today on the Jacks Fork

Eddy reads the gauge, the trend, and the forecast and writes a fresh take a few times a day. Use it as one input alongside your own judgment, the outfitter you’re renting from, and the most recent NPS advisories.

The pitch

Why the Jacks Fork is different

The Jacks Fork is the Current's wilder, clearer little sister. Rain-dependent and flashy above Alley Spring, spring-stabilized below it, and protected end to end as part of the Ozark National Scenic Riverways — the first national park area created to protect a river system, established by Congress on August 27, 1964 (Public Law 88-492). When it's running right — roughly 2.5–3.0 ft on the Alley Spring gauge — it is arguably the most beautiful float in Missouri.

  • Rain-dependent and flashy. Above Alley Spring the Jacks Fork has no large spring inputs. It rises and falls faster than any other Ozark float stream and can go from floatable to unfloatable in a day. Check the gauge the morning you launch, not the week before.
  • Clear, narrow, and intimate. Smaller than the Current and tight against bluffs and boulders. Lighter craft — kayaks and canoes — beat rafts on the upper river.
  • Two rivers in one. The upper canyon from the Prongs to Bay Creek is wild, technical spring-runoff water with Jam Up Cave's 80-foot arch. Below Alley Spring's ~81 million gallons a day, the river stabilizes and floats reliably into summer.
  • Protected end to end. Part of ONSR and NPS-managed, with free gravel-bar camping and the same Leave No Trace rules as the Current.
Float sections

Pick your float

The Jacks Fork divides cleanly into character zones. Pick by how much time you have, who you’re paddling with, and what you want to see.

Segment · upper

Upper Jacks Fork — The Prongs to Bay Creek

Wild, narrow, and rain-dependent. The upper canyon needs spring runoff or a recent rain to float; in exchange you get Jam Up Cave's 80-foot arch, Blue Spring, and the most dramatic small-river scenery in the Ozarks. Often bony or unfloatable by mid-summer.

1

Buck Hollow Rymers

Open this float in the planner →

The upper canyon

Distance
9 mi
Float time
4–5 hr
Class
II
Crowd
Quiet

The wild heart of the river. From Buck Hollow (mile 6.8) the canyon narrows past Blue Spring (mile 9.6 — the Jacks Fork's Blue Spring, near Buck Hollow, not the Current's near Powder Mill), the 80-foot arch of Jam Up Cave (mile 12.6), and the rare intermittent Ebb and Flow Spring (mile 15.9) down to Rymers (mile 16.2). Needs spring runoff or a recent rain; usually bony by mid-summer.

Best for: Experienced paddlers, spring runoff, scenery
2

Rymers Alley Spring

Open this float in the planner →

Rymers to Alley

Distance
15 mi
Float time
Long day or overnight
Class
I–II
Crowd
Quiet

The transition stretch. Still rain-dependent until Alley Spring brings in its flow, with gravel-bar camping at Bay Creek (mile 25.2) roughly the halfway point. Quiet, bluff-lined, and a good overnight when the upper canyon has water.

Best for: Overnighters, solitude
Segment · lower

Lower Jacks Fork — Alley Spring to Two Rivers

Below Alley Spring's ~81 million gallons a day the river stabilizes and floats reliably through summer. The red Alley Mill, easy Class I water, and the Eminence-to-Two-Rivers finish make this the family-friendly half.

3

Alley Spring Eminence

Open this float in the planner →

The Alley Spring run

Distance
6 mi
Float time
2–3 hr
Class
I
Crowd
Busy summers

The postcard float. Put in below Alley Spring — Missouri's 7th-largest spring and the photogenic red 1894 mill — where ~81 million gallons a day stabilize the river. Easy Class I water down to the Eminence city access (mile 37.3). The most popular family stretch and reliably floatable through summer.

Best for: First-timers, families
4

Eminence Two Rivers

Open this float in the planner →

Eminence to the confluence

Distance
7 mi
Float time
3–4 hr
Class
I
Crowd
Moderate

From Eminence (mile 37.3) the river drifts past Shawnee Creek (mile 41.9) to Two Rivers (mile 44.3), where the Jacks Fork joins the Current. A relaxed half-day and an easy add-on for a multi-river weekend.

Best for: Families, the classic finish
Off-river stops

Springs & sights worth stopping for

mile 9.6
Blue Spring (Jacks Fork)
Cold spring rising from a cave on river-left near Buck Hollow, half-hidden by boulders. Not the Current's Blue Spring near Powder Mill — the two are routinely confused.
mile 12.6
Jam Up Cave
An 80-foot-high cave arch visible from the river — one of the most spectacular cave mouths in Missouri. Like all ONSR caves it's closed to entry on foot to slow White-Nose Syndrome among bats.
mile 15.9
Ebb and Flow Spring
A rare intermittent spring on river-left that pulses in flow on a schedule unrelated to rainfall or barometric pressure.
mile 31
Alley Spring & Mill
Walk-up NPS interpretive site at the lower put-in — the spring's blue pool and the iconic red 1894 roller mill.
Directory

Outfitters, campgrounds & lodging

Every active service that operates on the Jacks Fork. Tap a phone number to call; tap Reserve to book.

Outfitters
6
Harvey's Alley Spring Canoe Rental
Eminence, MO
Open April through October. Sun-Fri 8am, Sat 7am.
Campgrounds
6
Alley Spring Campground
Eminence, MO
Reservations Apr 15 – Oct 15 via Recreation.gov. First-come first-served Oct 16 – Apr 14. Water off Oct 15 – Apr 14 (heated showers year-round).
RiverTime RV
Eminence, MO
Story's Creek Campground
Eminence, MO
Cabins & lodges
12
Jack's Fork River Resort
Eminence, MO
Check-in 3pm, check-out 10am. 14-day cancellation policy.
Shady Lane Cabins
Eminence, MO
Shawnee Creek Cottages
Eminence, MO
River Ridge Cabins
Eminence, MO
OA Rental Properties
Eminence, MO
USGS data

Water levels & gauge

Check the gauge before you load the truck. The trend over the last week matters more than today’s number — a falling river after a flood is fine; a rising river isn’t.

Park rules

Regulations

Glass containers
Prohibited on the river within ONSR. Glass on the water is a citation, no exceptions.
Read the official rule →
Caves & White-Nose Syndrome
All ONSR caves, including Jam Up Cave, are closed to entry on foot to slow White-Nose Syndrome among bats. Admire the arch from the river.
Read the official rule →
Gravel-bar camping
Free, non-reservable, leave-no-trace on most NPS-managed gravel bars. Some bars are closed seasonally for nesting — signage at access points lists current closures.
Read the official rule →
Alcohol
Permitted on the river but never in glass. The Jacks Fork is a National Park unit — rangers are active; keep it accordingly.
Read the official rule →
By the season

When to go

Mar–Apr
Prime upper-canyon window.
Snowmelt and spring rain float the wild upper river. Cold water.
May–Jun
Sweet spot.
Upper still runs most years; the lower river is gorgeous and warming.
Jul–Aug
Lower river, usually.
The upper canyon goes bony; Alley Spring keeps the lower floating. Reserve 2–4 wks ahead.
Sep–Oct
Quiet and colorful.
Lower river floats; the upper needs a rain bump.
Nov–Feb
Floatable below Alley after rain.
Cold-weather solitude. Pack like you're winter camping.
Getting there

Drive times

St. Louis
~3.5 hr to Eminence
Get directions →
Kansas City
~4.5 hr to Eminence
Get directions →
Springfield
~2 hr to Eminence
Get directions →
Memphis
~4 hr to Eminence
Get directions →
Pack & plan

Before you launch & on the water

Pack
  • PFDs (legally required — one per person, worn by anyone under 7).
  • Dry bag for keys, phone, ID, and a fleece. The narrow upper river flips beginners in riffles.
  • Drinking water (a gallon per person per day in summer) — even clear ONSR springs aren't safe to drink.
  • Reef-safe sunscreen and a hat. Bluff shadows are short.
  • Hard-soled water shoes. Gravel bars and bedrock are sharp.
  • A gauge check the morning you launch — the Jacks Fork rises and drops faster than anything else in the Ozarks.
  • Trash bag — pack out what you bring in.
Plan
  • Check the gauge that morning. Watch the Alley Spring gauge (USGS 07065495). The river can climb or drop a foot overnight; yesterday's reading isn't today's river.
  • Upper canyon = spring runoff. Buck Hollow to Bay Creek needs water. By July it's usually too low — float the lower river below Alley Spring instead.
  • Camp on gravel bars. Free and non-reservable on most NPS sections: 200 ft from springs and tributaries, no cutting live wood, pack out ash.
  • Respect flash floods. A narrow canyon means fast rises. If rain is forecast or the gauge is climbing, postpone — this is the flashiest float in the Ozarks.
In the area

Nearby attractions

Historic site
The blue spring pool and the red 1894 roller mill — the most photographed spot in the Ozarks, right at the lower put-in.
Waterfall
A pink-granite shut-in and swimming hole off the Stegall Mountain road — a short detour between the Jacks Fork and the Current.
State Park
Modern lodge, cabins, and a trailhead at Sinking Creek — the best overnight base between the Jacks Fork and the upper Current.
Cave
Ranger-led lantern tours from the Round Spring campground on the nearby Current River, in season.
Quick answers

FAQ

About 2–3 hours for the 6-mile run at normal flow, longer with a swim stop. It's the most popular family float on the river.
See also
Current — the bigger ONSR sister, spring-fed and year-roundEleven Point — wilder still; the actual Wild & Scenic RiverMeramec — closer to STL, easier logistics
Ready to launch?

Plan your Jacks Fork River trip on Eddy

Open the Jacks Fork River planner →
Safety first: Eddy is a planning guide only. Always consult local outfitters and authorities for current conditions before floating. Water levels can change rapidly. Wear life jackets and never float alone.