The
Jennings River is a
river in far northern
British Columbia,
Canada, rising in the northern reaches of the
Stikine Ranges of the
Cassiar Mountains, at first running southwest, then turning northeast near the
Tuya Range to enter
Teslin Lake at its southern end, just to the east of the estuary of the
Teslin River; also joining the lake in the same area is the
Hayes River. The lower reaches of the Jennings form the boundary of the
Nisutlin Plateau, which extends north into the Yukon along the eastern flank of Teslin Lake and to the west of the northernmost reaches of the Stikine Ranges;
Simpson Peak is one of the few named summits in that region of the Stikines, and stands above the lower Jennings to the east of its estuary. To the south of the Jennings, west of the Tuya Range, is the
Kawdy Plateau, which includes the small but rugged
Atsutla Range, and southwest of which is the course of the Teslin River, which traverses the Kawdy, a subset of the
Stikine Plateau, from south to north.