Greer Crossing, Eleven Point River - Swimming Hole near Alton
Alton,MO
36.79356389, -91.32854167
7.9 miles NE of Alton
GPS: 36°47'36.8"N 91°19'42.8"W
Maps | Directions
State: MO

Camp, Canoe, Hike, Kayak, and Swim

Greer Crossing sits on the Eleven Point River where Missouri Highway 19 crosses it, about ten miles north of Alton in the Mark Twain National Forest. It is the busiest put-in on the 44.4 miles of the Eleven Point that Congress named a National Wild and Scenic River in 1968, one of the original eight rivers in the system. Most of the traffic is canoes and kayaks headed downstream, but the gravel bar and the slow green water beside the concrete ramp are a swimming spot in their own right, and on a July afternoon that is mostly what the bank is being used for.

What makes the water here different from the rest of the river is Greer Spring. The spring rises in a wooded box canyon a mile and a quarter upstream, pushes an average of 222 million gallons a day, and its branch drops sixty-two feet through the hollow before joining the Eleven Point just above the Highway 19 bridge. The Forest Service is blunt about the effect: the spring more than doubles the river's flow where the two meet, and it turns the Eleven Point into a cold water stream for miles below. That is why the river runs a clear bottle green past Greer when other Ozark streams are low and warm, and it is also why the first step off the gravel is a shock. Even in August the water below the confluence stays cold enough that people get in, yelp, and get back out before trying again.

Swimming here is allowed but informal. The Forest Service says plainly that you can swim in the river and that there are no designated swimming areas, so expect no roped-off beach, no lifeguard and no marked depth. The pool below the ramp is deep enough to swim, and it shallows onto gravel on the inside of the bend, which gives a family some standing room. Footing is rounded chert and limestone cobble, and the current keeps moving even where the surface looks still.

No site along the Eleven Point charges a day use fee, so the parking, the ramp, the vault toilets and the picnic area at Greer Crossing cost nothing. The campground on the river bank has 16 single sites at $10 a night and 3 double sites at $20, first come first served, with drinking water turned on roughly April through November. The McCormack-Greer Trail leaves from the recreation area and runs about four miles along the river and up through the hills to McCormack Lake.

Two things worth knowing. Swimming, wading and floating are prohibited in Greer Spring itself and in its spring branch, so the steep 0.9 mile trail down to the spring from the Highway 19 trailhead is for looking, not for getting in. And roughly half the land inside the designated corridor is private ground held under scenic easement where public entry is not allowed, so once you leave Greer Crossing, stay on the water or on marked national forest ground.

Updated September 22, 2026

More Information

Eleven Point River near Bardley, MO - USGS Water Data for the Nation

Discover water data collected at monitoring location USGS-07071500, located in Oregon County, Missouri and find additional nearby monitoring locations.

https://waterdata.usgs.gov/monitoring-location/USGS-07071500/

Eleven Point River | Rivers.gov

The Eleven Point River, one of the eight initial components of the National Wild and Scenic River System, meanders through the picturesque Ozark hills of southern Missouri. Its course is cut in the shadows of steep bluffs, through sloping forested valleys and low-lying riparian ecosystems. Barely more than a small stream at its upper reaches near Thomasville, Missouri, it gains considerable width and depth as it proceeds southeastward. Springs pouring from dolomite bluffs or rushing up from a vast network of underground flow systems provide a continuous source of water and beauty.

https://www.fws.gov/rivers/river/eleven-point

Mark Twain National Forest | Eleven Point National Wild and Scenic River | Forest Service

The Eleven Point National Wild and Scenic River was established in 1968 as a 44-mile scenic river, free of impoundments with a largely undeveloped shoreline and watershed. This portion of the river between Thomasville, Missouri and the Highway 142 bridge is near Gatewood, Missouri. It became one of the 8 initial units of the National Wild and Scenic River system in 1968.The Eleven Point National Wild and Scenic River meanders through the picturesque Ozark hills of southern Missouri. Its course is cut in the shadows of steep bluffs, through sloping forested valleys, and low-lying riparian ecosystems. Barely more than a small stream at its upper reaches near Thomasville, it gains considerable width and depth as its proceeds south-eastward.Springs pouring from dolomite bluffs or rushing up from a vast network of underground flow systems provide a continuous source of water and beauty. Alternating stretches of rapids and deep clear pools wind around moss covered boulders and shading bottomland hardwood trees.Greer Spring is the world's 10th biggest spring and doubles the size of the river while turning it into a cold water fishery.Access to the River: There are currently eleven designated access points to the river by vehicle. Of these access points, 7 sites have amenities. The remaining 4 access sites have no amenities. In addition, there are 7 float camps designated on the river to provide overnight camping for river users, most of these are only accessible by boat.Boating on the River: The river has been designated for both motorized and non-motorized use. The motorized users must adhere to a 25 horsepower limit.Fishing: There are opportunities aplenty for small mouth bass and pan fish. Special regulations apply. Visit the Missouri Department of Conservation website for more information. Trout fishing starts at the confluence of the Greer spring branch and the river. This is the beginning of the blue ribbon trout section which extends about 6 miles to Turner Mill spring. More detailed information is available below under Fishing.

https://www.fs.usda.gov/r09/marktwain/recreation/eleven-point-national-wild-and-scenic-river

Mark Twain National Forest | Greer Crossing Recreation Area | Forest Service

As you exit the highway, the campground is located to the left with campsites located off of a loop road that circles through the campground. If you stay straight you will get to the boat launch and day use area.This campground is primarily used by people using the river. It’s a nice flat, level area immediately adjacent to the highway.This campground is a hub that puts you in the vicinity of Greer Mill, Greer Spring, and numerous other historic mills and springs. There are several historic sites in the area also. These sites are not within walking distance, but are a reasonable drive away along Highway 19.When you access the site from the river, it will be located on the right-hand side.CampingThe campground is set back away from the water’s edge. A campground host is on site in the summer. Sites, which offer seclusion and privacy, each with a table, fire ring, and lantern post.Picnicking and BoatingA picnic area is near the boat access. The boating access is one of the most popular launch sites for people floating the Eleven Point.HikingThere is one trail available for hikers; a 4-mile trail that follows the river and through typical Ozark hills up to McCormack Lake then circles back for a 2 mile walk back to Greer. This trail runs along the river and then back along the hillside above the river.FishingFishing is plentiful, there are rainbow trout, small mouth bass, and sunfish, just to name a few.

https://www.fs.usda.gov/r09/marktwain/recreation/greer-crossing-recreation-area

Mark Twain National Forest | Greer Spring | Forest Service

When you pull into this parking lot it’s easy to find the trailhead which starts you on the downhill, .9 mile hike to the Greer Spring. Don’t forget to stop at the restroom before you head down the hill. Even though it’s a short hike, bring plenty of water to drink, especially in summer months.Greer Spring is the second largest spring in Missouri. Greer Spring flows from two outlets about 250 feet apart at the bottom of a steep, shaded ravine at the terminus of the trail. More like the emergence of an underground river, the water feeding Greer Spring comes from nearby streams that flow underground, as well as sinkholes found to the west and north-west of the spring, as far as 35 miles away.The spring flows from the mouth of Greer Spring Cave, which is the mouth of the spring branch, and boils up from the rugged bed of the stream. The spring run drops 62 feet in elevation for 1.25 miles where it more than doubles the flow of the Eleven Point National Scenic River where they join.The .9 mile trail to the spring travels through a mixture of hardwoods and pines. The overstory of trees, includes a variety of oaks, shortleaf pine, hickory, maples, basswood, and black gum. Hikers will also see flowering dogwoods, sassafras, persimmon, hazelnut, cedar, and hackberry.Rock formations along the spring and spring branch canyon inspire many photographers. Flowing down a rock filled canyon for one mile, the spring branch enters the Eleven Point River. There is no fishing, boating, floating or wading allowed in the spring branch.

https://www.fs.usda.gov/r09/marktwain/recreation/greer-spring
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The clear green water of the Eleven Point River in southern Missouri. courtesy of Charlie Llewellin from Austin, USA↗ (CC BY-SA 2.0↗) The clear green water of the Eleven Point River in southern Missouri. courtesy of Charlie Llewellin from Austin, USA↗ (CC BY-SA 2.0↗)
Eleven Point River at Greer Crossing Recreation Ar by Blue Angel Images and Video Greer Spring, whose branch more than doubles the Eleven Point's flow just above Greer Crossing. courtesy of usfs_Eastern_Region↗ (Public domain↗) Greer Spring, whose branch more than doubles the Eleven Point's flow just above Greer Crossing. courtesy of usfs_Eastern_Region↗ (Public domain↗) Floating Greer Crossing to Whitten Access on the E by AR Own Backyard Riverton Access downstream on the Eleven Point, a typical Forest Service gravel and concrete river a courtesy of DeeDotEssKay↗ (CC0↗) Riverton Access downstream on the Eleven Point, a typical Forest Service gravel and concrete river a courtesy of DeeDotEssKay↗ (CC0↗) Float trip Eleven Point- From Greer Crossing to Tu by Yoda Kitchen and Adventures Gravel bar and open water on the Eleven Point River in Oregon County, Missouri. courtesy of mostateparks↗ (Public domain↗) Gravel bar and open water on the Eleven Point River in Oregon County, Missouri. courtesy of mostateparks↗ (Public domain↗) Catch & Cook | Kayak Camping the Eleven Point Rive by Ozark Media Co Greer Spring emerging at the base of its bluff in late October. courtesy of Kbh3rd↗ (CC BY 3.0↗) Greer Spring emerging at the base of its bluff in late October. courtesy of Kbh3rd↗ (CC BY 3.0↗) Sycamores leaning over the Eleven Point River in the Ozark hills. courtesy of mostateparks↗ (Public domain↗) Sycamores leaning over the Eleven Point River in the Ozark hills. courtesy of mostateparks↗ (Public domain↗)

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