Showing some main trails in the hills above Monrovia. The top image is an overall view of the entire map. The middle image is the map legend. The bottom image is a side view showing elevations and the detail of the map.
A lot of time and effort went into making this map and it can be seen in the Nature Center of Monrovia Canyon Park.
Click the image for a larger view.
Always enjoyable to view a topo map.