
AROUND THE WORLD
Anti-submarine Indicator Loop stations in the United States
North Scituate - Boston, MA
Drawing by Gerry Butler
Loop receiving stations, as they
were known, were operated by the United States Navy. They were used in WW2
as part of the Harbor Defenses and consisted of indicator loops, controlled
minefields, boom nets, fixed sonar (the Herald: harbor echo ranging and
listening devices).
This page deals specifically with the indicator loop antisubmarine defences
between Fourth Cliff (North Scituate) and Provincetown on the northern tip of
Cape Code, Massachusetts, USA.
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If
you worked there or have any feedback please contact me:
Email: Dr. Richard Walding (waldingr49@yahoo.com.au)
Research Fellow - School of Science
Griffith University
Home Phone: 61 (0)7 32064976
69 Summit Street, Sheldon, Q, 4157, Australia |
LINKS TO SOME OF MY LOOP PAGES:
Indicator Loops around the World (Home Page)
How
an indicator loop works
East
Point, Nahant, Massachusetts Loop Receiving Station (USN)
USCG (USN) Pequot cableship
The North Scituate indicator loops were most likely between Fourth Cliff and the
Peaked Hill Bar on Cape Cod, a distance of about 38 km. The map below shows
indicative positions for the loops. These are only estimates of the positions to
show how they might be arranged. The exact position awaits confirmation from the
USN maps.

Peaked Hill Bar was one of the original nine stations which were erected
on Cape Cod in 1872. It is located 2½ miles northeast of Provincetown on the
northern tip of Cape Cod. "A more bleak or dangerous stretch of coast can hardly
be found in the United States than at this station. The coast near the station
rightly bears the name ‘ocean graveyard.’ Sunken rips stretch far Out under the
sea at this place, ever ready to grasp the keels of the ships that sail down
upon them, and many appalling disasters have taken place here. There are two
lines of bars that lie submerged off the shore ... these bars are ever
shifting."
SOME USN INDICATOR LOOP LINKS
Fort
Tilden (New York) Main Page (USN)
Fort
Tilden Harbor Entrance Control Post
Fort
Tilden Loop Receiving Station