Provo River, Utah

Deer Creek Dam to Vivian Park

The Lower Provo begins at Deer Creek Dam and runs down Provo Canyon beside US-189, with the first miles below the dam holding the densest fish in the coldest water. Pullouts along the highway and the Vivian Park area give walk-in access to riffles, runs and the long glides that make these fish so selective.

Vivian Park to Olmsted

From Vivian Park past Bridal Veil Falls and Nunns Park the canyon narrows and the Provo River Parkway trail parallels the water, so access is continuous. The special regulations run from the Olmsted Diversion Dam at the canyon mouth up to Deer Creek Dam, and the Olmsted diversion is where most of the river leaves the channel in irrigation season.

Olmsted to Provo and Utah Lake

Below the diversion the river runs through Orem and Provo to Utah Lake under statewide rules. The USGS gauge this page reads is here at Provo, below Olmsted, so from spring through fall it shows far less water than the canyon carries; the Deer Creek release published by the Central Utah Water Conservancy District is the number to check for the canyon itself.

Rainbow trout

Rainbows are the majority in the canyon and they see more flies than any trout in Utah, so long leaders, 6X tippet and tiny midges, sowbugs and scuds fished slow and deep are the standard approach between hatches. The Mother's Day caddis, on from late April and peaking in May, brings them up in numbers, followed by green drakes in June and July, PMDs and Tricos through summer and baetis in fall.

Brown trout

Browns hold in the deeper canyon pools and along the banks and become the streamer target in October and November as they stage to spawn. They are less numerous than the rainbows in this reach but usually the largest fish landed.

Season and regulations

The canyon fishes all year on Deer Creek releases. Utah shops put good wading flows at 300 to 650 cfs and floatable flows up to about 800 cfs, so 300 to 650 cfs is the band this page uses; because the Provo gauge sits below the Olmsted diversion, expect it to read low in summer even when the canyon is in shape.

Utah's 2026 guidebook makes the river from the Olmsted Diversion Dam upstream to Deer Creek Dam artificial flies and lures only with a limit of 2 trout under 15 inches; below Olmsted statewide rules apply and June sucker must be released near Utah Lake. Check the current Utah DWR fishing guidebook before you fish.