Drawing on the Map

The caption of this image is rich with a reading of the map and the implications of the locations of the West Lake Landfill and other toxic sites, including the contaminated water that drains into the Missouri River. I am wondering if the analytic purchase of this image could be enhanced by having these connections illustrated by arrows and/or circles, or perhaps in even more creative ways. I'm thinking here about how meteorologists sometimes illustrate currents and flows over the top of their background visualizations to illustrate their argument. See this image for example. I also wonder if this image could be better served in the satellite view? I'm not certain, but it's an option to consider. You could also see what each view hides and reveals? Anything interesting? Maybe you could play with both by blending or juxtaposing them?