Third Porcupine Rapids is a stretch of rapids in Sawyer County, Wisconsin, in the Northern Lakes and Forests region. It lies about 19.5 miles west of Phillips and roughly 70 miles northeast of Eau Claire as the crow flies.
The Northern Lakes and Forests are a glaciated landscape of pine, spruce, aspen and northern hardwoods dotted with thousands of lakes and wetlands. Rivers step down over ancient bedrock ledges, with dark, tannin-stained water pouring over rock.
Sawyer County holds 11 recorded rapids, and several are close by. Second Porcupine Rapids, is under a mile away. First Wannigan Rapids, is under a mile away. First Porcupine Rapids, is under a mile away.
Third Porcupine Rapids is located at 45.6983° N, 90.8043° W. The listing is based on the USGS Geographic Names Information System, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The position was verified on aerial imagery. Details on trails, parking and access have not been documented for this rapid yet.