Clifton to the Ohio: what the scenic label covers
The Little Miami was Ohio's first state scenic river: on April 23, 1969 the state designated it from Milford up to the headwaters, and added the rest in 1971. The federal designation came on August 20, 1973, with an addition on January 11, 1981, and covers the river from State Route 72 at Clifton down to the Ohio River, plus the lower two miles of Caesar Creek. In all it runs 111 miles through southwest Ohio to its mouth on the east side of Cincinnati.
The designation does not change fishing rules; what it has done is keep the corridor in parks and trails. The National Park Service's river summary calls the Little Miami one of the state's better smallmouth streams and lists a substantial sport fishery for smallmouth, largemouth and spotted bass, channel and flathead catfish, rock bass and bluegill, with 94 of Ohio's more than 170 fish species recorded in it.
Riffles, pools and a trail on the old rail grade
The river starts in Clifton Gorge in John Bryan State Park, a narrow rocky gorge with sheer walls, then settles into a pattern it keeps for most of its length: long pools broken by short riffles, with fast water mostly in the outside of bends. Below the gorge it runs south past the Fort Ancient earthworks, Kings Mills and Loveland to Milford, with Caesar Creek, dammed by the Corps of Engineers in 1973 to form Caesar Creek Lake, joining along the way. The Little Miami Scenic Trail, shared with the Buckeye Trail, follows the old rail grade along much of that, which means a lot of walk-in access if you are willing to hike from a trailhead and drop down the bank.
Canoe liveries work the middle river in summer, and weekend traffic can be heavy. Little Miami Canoe Rental asks paddlers to call 513-899-3616 before every trip because levels change daily; wading anglers should take the same hint and check the gauge.
Ohio's bass rules, and what they leave open
There is no special regulation on the Little Miami. Statewide rules apply: five black bass a day, largemouth, smallmouth and spotted combined, with a 12-inch minimum, open all year. Channel catfish under 28 inches have no daily limit and you may keep one 28 inches or longer. Those figures come from the 2025-26 Ohio digest, the most recent one available online; the Division of Wildlife's own site could not be reached for this guide, so confirm before keeping fish.
Because the spawn is not protected by a closed season, the sensible thing is to release bass on beds in May and June. The river also carries 36 species of freshwater mussels, five of them endangered in Ohio, so watch where you plant your feet on the gravel bars.
How the smallmouth year goes
Ohio Fly Fishing Guides, which fishes rivers across the state, lays out the season: April and May are pre-spawn, when the largest fish of the year come on big, bright baitfish flies and a solid cast matters. June through August is the easiest time, with small baitfish, crayfish dredged along the bottom, and finesse topwater with poppers and terrestrials; the bass feed off ledges and seams like trout and eat damselflies and dragonflies. September and October are a second pre-spawn, when cooling water sets off heavy feeding on baitfish.
Iowa DNR's advice on river smallmouth applies well here: in July and August small fish sit in a foot or two of water around riffles while larger bass hold on structure reaching into deep holes, and in spring and fall even big fish move shallow.
Milford and the upriver gauge
The Milford gauge sits near the bottom of the river, so it carries everything above it, including the outflow from Caesar Creek Lake. No shop publishes a wading range for it; the 300 to 900 cfs band on this page comes from the USGS record there, where monthly means drop from about 2,560 cfs in March and 2,210 in April to 1,170 in June, 760 in July and about 410 cfs in September and October. The lower half of that band is late summer and fall, the best wading of the year. The last three weeks before September 24, 2026 show how fast it swings: 300 cfs at the low, 12,900 after a storm, and still about 4,000 on the 24th. When Milford reads in the thousands, leave the waders home.
For the upper river below Clifton Gorge, use the Oldtown gauge instead; it read about 153 cfs on September 24.