Big Creek, Tasmania

Inglis
River
Wharf at the mouth of the Inglis River in Wynyard
Country	Australia
State	Tasmania
Tributaries
- left	Rattler River, Jessie River, Flowerdale River
- right	Calder River, Big Creek, Blackfish Creek
Source	Campbell Ranges
- location	Taken
- elevation	507 m (1,663 ft)
Mouth	Bass Strait
- location	Wynyard
- elevation	0 m (0 ft)
- coordinates	40°59′14″S 145°44′13″E / 40.98722°S 145.73694°E / -40.98722; 145.73694Coordinates: 40°59′14″S 145°44′13″E / 40.98722°S 145.73694°E / -40.98722; 145.73694
Length	61 km (38 mi)
Basin	471 km2 (182 sq mi)
Location of the river mouth in Tasmania

The Inglis River is a river in North West Tasmania, Australia, it extends approximately 61 kilometres (38 mi) from the Campbell Ranges near Takone before discharging into Bass Strait at Wynyard. The Flowerdale River is the largest tributary system on the Inglis River and makes up approximately one-third of the 471-square-kilometre (182 sq mi) Inglis-Flowerdale catchment basin.

While not tributaries of the main river system, Sisters Creek and Seabrook Creek are notable minor creeks which form part of the 616 square kilometres (238 sq mi) Inglis-Flowerdale catchment area. Annual rainfall ranges from about 1,000 millimetres (39 in) at the coast to greater than 1,600 millimetres (63 in) in the upper reaches of the catchment, some 26 kilometres (16 mi) inland from Wynyard.

Forestry plantations dominate the landscape in the western region of the catchment, with intensive agriculture land-use in the north and eastern regions. Because of the steep and confining nature of the topography around the Inglis and Flowerdale rivers, both have retained substantial native forests that tend to buffer the rivers from both land-use activities.

A 2003 water assessment report determined that the upper Inglis and Flowerdale Rivers and their tributaries are in generally good ecological health, however the middle and lower reaches of the Inglis River have less healthy macroinvertebrate communities. The poorer health of these communities suggest that they have been impacted by sedimentation from upstream forestry operations, gravel pits and poor stream-side agricultural land management practices. Measures to help mitigate further environment issues may include fencing off rivers to prevent from accessing waterways and re-vegetation of river banks to prevent further erosion.

Beddomeia capensis is an endangered freshwater snail that had previously been surveyed at a tributary of Big Creek in 1989, but is now only known to occur on a few small streams upon Table Cape. Other aquatic threatened species in the Inglis-Flowerdale catchment includes the endangered giant freshwater crayfish, and the Australian grayling.