[2] It is part of a fluvial system that drains about 10% of northern Indiana to Lake Michigan at Port of Indiana-Burns Harbor.

[3] In the summer of 1834, the first Lake County settler and homesteader, William Ross, settled near the confluence of Turkey Creek with Deep River.

The Deep River sources at the confluence of Main Beaver Dam Ditch[6] and Smith Ditch near Interstate 65 on the east side of Crown Point and flows east and northeast to man-made Lake George in Hobart, formed by a dam initially constructed in 1840 by George Earle.

[7] From this confluence, the LCR flows east in a man-made channel known as "Burns Ditch", a channelized section of the LCR that connects with the East Arm Little Calumet River and then exits north to Lake Michigan via a man-made outlet known as Port of Indiana-Burns Harbor in Portage, Indiana.

[12] Riparian trees of Deep River reflect typical bottomland species of elm, ash and maple.