I made this an after-school enrichment art class. The materials included black paper, oil pastels, white paint (but not water paint), some chalk, and a pencil outline.
I made this at a recent de Young Friday Night Cultural Event. They usually have tables full of art supplies, and I was supposed to be making a 3D mask and headdress, but ended up making another map :-)
I made this map after looking at Golden Gate Park in maps.google.com. My map includes the roads (white), lakes (blue), grass (green), and bus routes(in circles). The yellow road is Route 1.