Elevation Changes Cartographic maps are made with a passion for cartography and the beauty of the landscapes they depict, and the goal of enriching your experience when planning explorations and navigating on the trail. The latest-remote sensing data, extensive research, and on-the-ground field work are combined to provide you with an indispensable resource for exploration. Elevation Changes field maps contain details and content highlighting the recreation opportunities of an area, as well as information about the unique cultural, historic, geologic and natural environment to deepen explorers connection and understanding of a place.