This is the put-in at Akers, which is also known as Akers Ferry.  The ferry, seen on the right side, is a privately operated ferry that is still in operation.  I'm not sure how much business it gets, and I'm pretty sure a high-clearance vehicle could make it across in the late summer / early fall, but it is a ferry nonetheless.

Akers has a decent amount of services available such as canoe rental, general store, etc.  The put-in has lots of room to load up and is very accessible from the parking area.