River IN

Authen Ditch

Indiana • 41.6062, -86.2738

Hydrography profile Updated Dec 30, 2025

Checking mapped path coverage…

USGS and NOAA data is for informational purposes. Source notes

Length

7 mi

11 km

Elevation

861′ → 754′

107 ft drop

Stream Order

Medium River

Slope

0.31%

16.3 ft/mi

Drainage

8 mi²

19 km²

Avg Flow

-- cfs

1.1 mph velocity

Path to Mouth

568 mi

914 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Water Quality

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

Data from USGS & NOAA for informational purposes only. More