The 46th Parallel North is a circle of latitude that is located 46 degrees north of the Earth's equatorial plane. It runs across several countries, including the United States, Canada, and France. This parallel is significant as it serves as a reference point for geographical and climatic studies, marking a region that experiences distinct seasonal changes. In the United States, the 46th Parallel North passes through states like Montana and Michigan. It is also notable for its proximity to the Great Lakes, which influence the climate and ecology of the surrounding areas. The parallel is often used in discussions about land use and environmental conservation.