BASE END STATION B3S3 (Batt CHESTER), later B5S5 for BC 244
Approximately 100 feet south of the Funston Group CP, this BES is incorporated into the same wooden overlook platform, and also without any historical interpretation nearby. Walk-in entrance in rear is secured & obscured by heavy foliage, the structure is intact, albeit with typical minor graffiti, and litter dumped inside the partially-open observation port. Top hatch is secured shut.
With the modernization of coastal defenses in the early 1900s came a new system for aiming artillery. Prior to this time, guns were aimed on sightings taken directly at each battery.
The modern era brought electricity, improved communications, and allowed sightings to be made from widely spaced pairs of observation posts, called base-end stations. Data was sent to a central post where it was converted to aiming instructions and transmitted to each gun battery.