Also, the City's GIS (Geographic Information Systems) department has some terrific maps on their web site. These are large PDF files, so you'd need a good printer to get a paper product. (It might be easier to go buy one from the department.) But they sure are fun to look at, and in many cases looking is all you need to do to answer your question--finally, a good zip code map, a mountainous terrain map, residential subdivisions, and on and on. The thumbnail image is from Future Land Use.