Serving as one of the primary east–west routes across the Shoal Lakes, it connects the towns of St. Laurent and Teulon via Harperville and Erinview.

It heads due east as a gravel two-lane highway, leaving town travelling through a mix of farmland and wooded areas for several kilometres, where it makes a sudden sharp right at an intersection with Ideal Road, turning south for a short distance.

The highway makes a sharp turn to the south as it enters the Rural Municipality of Woodlands, travelling through remote wooded areas for several kilometres a junction with PR 322, where PR 415 becomes paved as it heads east through the hamlet of Erinview.

It is entirely a two-lane gravel road, mostly running along the eastern coastline of North Shoal Lake.

[1][4] For around eight years, the entire section of PR 416 running along the coastline was closed due to severe flooding in 2011 and 2014.