II. GEOG GRID - 11
Author(s): Cliffe, Tim
College: Grossmont College
Reading the contours on an actual USGS 7.5 Minute Topographic Map.
Specifically, the topography around San Diego's Cowles Mountain, as found on the USGS La Mesa Quad, is used to practice visualizing the gradient (or "steepness") of one route vs. another.