1/2/2018

5/3/2024

5/3/2024

3/11/2006

5/3/2024

Landmark information

  • Location:
    Parking lot of Coit Tower, Telegraph Hill, San Francisco
  • Plaque:
    Other Plaque
  • Site:
    Existing
  • Date First Visited:
    9/10/1995
  • Date Most Recently Visited:
    5/3/2024
  • GPS Coordinates:
    N 37 48.173, W 122 24.367

About this landmark

From the state:
During the gold rush days a look-out stationed in a structure on this spot observed and signalled the arrival of incoming vessels. By adjusting movable arms high on a tall pole and by hoisting national colors, he identified the nature of the ship arriving and alerted the town below. after four years, in 1853, this novel signalling system became obselete through the use of electrical telegraph.