http://maps.google.com/maps/ms?msid=215385036358074722333.0004aefc11438fc27d288&msa=0&ll=37.789981,-119.8526&spn=0.14434,0.302467 - my map of public safety locations - [124 views as of 6/11/2018] - see the other map on the front page - it is better
https://sites.google.com/site/yosemitenatlparkpublicsafety/home/2003/2003-park-map - 2003 Park map
https://sites.google.com/site/yosemitenatlparkpublicsafety/home/2010/2010-yosemite-map - 2010 Park map