Topographic map of the Adirondacks

This is a topographic map of a region in the Adirondack mountains.  Though the map is flat, we are able to visualize the topography of the land thanks to contouring.  Each line on the map represents a contour line.  The circles in the middle mark mountain peaks, and each surrounding contour marks a rise or fall in elevation.  Lines that are very close together indicate steep elevation, whereas lines that are farther apart represent a gentle downslope.  The main contour lines are marked with a number indicating elevation of that point in feet.
http://www.adirondacknorthway.net/mappages/mount_marcytopo.php