This detail is from a document provided in the board packet for a recent public meeting. According to the terms of the copyright, it's not legal for me to post this excerpt (except under fair use claims).
City of Ann Arbor Map Disclaimer:
No part of this product shall be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without prior written permission from the City of Ann Arbor.
This map complies with National Map Accuracy Standards for mapping at 1 Inch = 100 Feet. The City of Ann Arbor and its mapping contractors assume no legal representation for the content and/or inappropriate use of information on this map.
Map Created: 5/16/2014
h/t on Ann Arbor map nuttiness to @vielmetti, a resident there who would like his city to do the right thing.— Derek Willis (@derekwillis) September 3, 2014