River Forks to Winchester Bay
The main stem Umpqua begins where the North and South Umpqua meet, about six miles northwest of Roseburg, at River Forks Park and its boat ramp. From there it winds northwest through farm valleys past the settlement of Umpqua and the town of Elkton, turns west into a narrower canyon, and reaches the head of tide at Scottsburg. Below Scottsburg it is a navigable tidal river that picks up the Smith River near Reedsport and empties into Winchester Bay.
That makes three different fisheries on one river. The freestone reach from River Forks down past Elkton is where the smallmouth live and where most people float. The canyon above Scottsburg holds shad in early summer. The tidewater from Scottsburg to the jetties is where the fall Chinook and coho gather before they head upstream.
May through mid-July is shad time
ODFW lists the Umpqua with the Sacramento, Siuslaw, Columbia and Willamette as rivers where shad still return by the million, and says the best fishing is when they come in to spawn, from May until mid-July. The fish hold in current and are easier to catch where you can face a strong flow. They will hit almost any small lure or fly; ODFW's suggestion is a small, bright jig, with or without bucktail or a plastic grub tail. In the Southwest Zone there is no limit on shad.
One rule shapes shad gear: in Southwest Zone streams above tidewater, angling from May 22 through August 31 is restricted to artificial flies and lures, with exceptions for bait listed for the Umpqua basin in the booklet. Shad jigs and flies are legal either way.
Smallmouth with no bag limit
Bass in Southwest Zone streams have no daily limit and no minimum length, and streams are open for bass whenever they are open for trout, salmon or steelhead. Bass and shad are the two fish the main stem gets described by, and in mid-September 2026 ODFW's Southwest report called the bass fishing good, with a few reports of large striped bass as well. The Smith River's tidewater had smallmouth and stripers too, with no harvest limits on either.
ODFW's notes on smallmouth are practical. They slow down and get hard to catch below about 50 degrees, start spawning around 58 degrees, and relate to rock more than wood: points, boulders, ledges and drop-offs. Plastic grubs, crankbaits and spinners all work, and smaller lures than you would throw for largemouth. On the Umpqua that means bedrock shelves and the edges of the long pools between riffles.
Chinook quotas and the 200-foot rule
The permanent 2026 rules add one main stem restriction that catches people out. From Scottsburg Bridge upstream to the River Forks boat ramp, from June 1 through September 30, angling is closed within 200 feet of the mouth of every tributary, and for 200 feet up into any open tributary. That is where fish stack up in warm water, which is the point.
ODFW's in-season rules for 2026 cover fall Chinook from the visible tips of the jetties up to the North and South Umpqua confluence: from July 1 through November 30 the daily limit is one adult wild Chinook, and no more than five wild adults for the whole period. The zone rules allow 2 adult salmon or steelhead a day in aggregate and 20 a year, and only hatchery steelhead may be kept. Wild coho seasons are set each year before September. In mid-September ODFW reported a few Chinook and fin-clipped coho near Reedsport. Nearby, the North Umpqua is closed to steelhead from August 10 through November 30 and the South Umpqua is closed to all angling from September 16 through November 30, so do not plan a side trip up either fork this fall.
Elkton flows, and the pools to avoid
USGS 14321000 is near Elkton, 56.9 miles above the mouth, and it is the only gauge the site has on the main stem. No shop publishes a floating range for it, so the 1,000 to 3,400 cfs band is the June through October spread of monthly means since 2010: about 3,350 in June, 1,430 in July, 1,050 in August, 1,160 in September and 1,910 in October. Winter is a different river, averaging over 13,000 in January. On September 24, 2026 Elkton read 1,180 cfs, normal late-summer bass water.
Douglas County keeps a permanent recreational use advisory on the South Umpqua from Canyonville to the confluence and on the main stem down past Elkton to Sawyers Rapids. Pools in the bedrock along the edges can grow cyanobacteria blooms that are harmful to people and pets, and signs are posted at several access areas. Keep dogs out of still, warm edge water in late summer.