Long before Grenville County was given this name, approximately 500 years ago, it was occupied by a native population. The St. Lawrence Iroquois lived in longhouses in agricultural communities with some of these sites housing as many as 1600 people.

The storied history of our county where the Grenville Park Campground and RV now stands includes French and then British occupation, an influx of immigrants, battles fought and many boundary and name changes.

Now, the RV park is government land and family operated.