SR 162 heads north through a forested area before curving to the east where it then parallels the northern shoreline of Mud Lake.

The road then enters the center of Sinclair, an unincorporated settlement within Square Lake.

The road briefly heads north, turns to the northeast, then eventually curves to the northwest at Long Lake Seaplane Base.

The town's post office, library, churches, and a middle school are located along SR 162 through here.

At the bottom of the slope, SR 162 ends at US 1 in the center of Frenchville, near the St. John River and the Canada–US border.