The <a class="external text" href="https://en.wikipedia.org/wiki/Project_Nike">Nike</a> system was rapidly made obsolete, but sites such as <a rel="nofollow" class="external text" href="http://www.crypto.com/photos/misc/sf88l/">this one</a> in Marin are still around.  There's another on <a class="external text" href="https://en.wikipedia.org/wiki/Angel_Island,_California#History">Angel Island</a> though I didn't get a good photo of it.  There are <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/tags/angel%20island/map?&amp;fLat=37.8612&amp;fLon=-122.4317&amp;zl=2&amp;map_type=hyb&amp;order_by=interestingness">plenty</a> to be <a rel="nofollow" class="external text" href="https://www.flickr.com/search/?q=nike%20missile%20angel%20island&amp;w=all">found</a>, though.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/9880707@N02">moppet65535</a>
CC BY-SA 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/9880707@N02/2748317393/">Nike Site SF-88L</a>