Maidstone Lake was created when glacial ice carved out a deep basin along the northern stretches of the Connecticut River. The deep cold water left behind as a result of the glacier melt is now ideal habitat for salmon, rainbow and lake trout. Like many of the Northeast Kingdom lakes, Maidstone’s fish population was managed through creel surveys to help establish regulations and stocking efforts to provide anglers with a quality fishing experience. In recent years the focus on Maidstone Lake has changed . With access to genetic analysis fisheries biologists are discovering that Maidstone may hold a species of fish that is a direct descendent of the first lake trout left behind by the receding glaciers.