River OR

North Umpqua River - Lemolo Lake

Oregon • 43.3166, -122.1928

Hydrography profile Updated Dec 27, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

106 mi

171 km

Elevation

5,984′ → 361′

5,623 ft drop

Stream Order

Major River

Slope

1.00%

52.9 ft/mi

Drainage

1,338 mi²

3,465 km²

Avg Flow

4,491 cfs

2.2 mph velocity

Path to Mouth

216 mi

347 km to ocean

Classification

Headwater

Source Stream

Elevation Profile

Water Quality

Data from EPA Water Quality Portal (USGS, EPA, state agencies).

Data from USGS & NOAA for informational purposes only. More

Access Sites on North Umpqua River - Lemolo Lake

There are 2 boat ramps, launches, and public access points on North Umpqua River - Lemolo Lake.