Lake Arrowhead covers 779 acres and is located in Limerick and Waterboro, York County, Maine (see The Maine Atlas and Gazetteer map 2 A2). This lake has two trailerable boat launches. The first one is located off New Dam Road by the dam over which flows the Little Ossippee River. The second one is about two miles further south also off New Dam Road but closer to Chadburne Ridge Road which separates this lake from Little Ossippee Pond. I put my small aluminum craft in the water by the dam. The water is deep enough at this location to dispatch large boats. Plenty of parking is also available next to the launch. I arrive at the launch by 10 am and am greeted by a friendly and chatty boat inspector. The lake has been infested with Eurasian milfoil, an aggressive invasive plant species, for over 20 years. She checks every boat going in and coming out for fragments of this aquatic pest to ensure that the infestation does not spread to other water bodies.Surprisingly, considering it’s the long July 4th weekend, I only see three other cars with trailers parked by the launch.