Turning Point 211 is the point in the middle of the St Clair
River, between Port Huron, Michigan and Sarnia, Ontario that marks
the precise location of the border between the US and Canada. The
two miles of river between here and Lake Huron is one of the most
challenging stretches of the St Lawrence Seaway to navigate and has
been the site of many collisions and shipwrecks due to the sharp
turns and strong current.
The International Boundary Commission, founded under the Treaty
of 1908, is responsible for defining the exact location of the
border. Here, on the St Clair River, the border is defined by a
series of straight lines joining unmarked Turning Points, such as
this one, which are referenced to land-based monuments on both
sides of the river.
To log Turning Point 211 as a find, locate one of the
land-based reference monuments that is within line-of-sight
of Turning Point 211 and e-mail me the inscription on the
monument and the distance and bearing to Turning Point 211.
You can log this only from line-of-sight IBC reference
monuments in either Port Huron or Sarnia.
Note added: Since the closest IBC monument in Port Huron is on
Coast Guard property (see log below). National Ocean Survey marks
within line-of-site of Turning Point 211 can also be used to log
from the US side of the border.
