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There are some old coastal defense bunkers/stations along the SF coastline that were used for the same techniques. Except rather than a small rangefinder statio

by dylanrw 12y ago

There are some old coastal defense bunkers/stations along the SF coastline that were used for the same techniques. Except rather than a small rangefinder station each location would act as one eye in a network to provide even greater accuracy. TLDR Stereo vision FTW... http://en.wikipedia.org/wiki/Base_end_station http://en.wikipedia.org/wiki/Base_end_station

sparkman55 12y ago
The Devil's Slide Trail, a brand new park along the coast south of Pacifica (south of San Francisco), has an example of one of these emplacements. http://parks.smcgov.org/devils-slide-trail http://parks.smcgov.org/devils-slide-trail