[Talk-ca] Coastline Question

Adam Martin s.adam.martin at gmail.com
Wed Mar 25 22:19:38 UTC 2020


Hello all,

I have been moving about the Island of Newfoundland addressing Keep Right!
issues and adding missing features.  While doing so, I encountered an area
of coastline along the Burin Peninsula that appears odd to me.
Specifically, the Garnish River here:

https://www.openstreetmap.org/#map=16/47.2322/-55.3473

On the regular map, it looks fine.  In the iD Editor, however, the banks of
the river are designated as the coastline.  Now, I know that this is
reasonable in some circumstances (generally, where the ocean water is
directly present in the waterway).  But if you look at it in the editor,
the coastline doesn't stop in that area.  In fact, the coastline extends
deep into the interior of the peninsula, tracing along the riverway all the
way to just north of Clam Pond.  Again, I know this can be reasonable in
cases where, if I recall correctly, the water itself is at ocean level or
similar.  I recall there being wrangling over the St. Lawrence regarding
the coastline designation, but this is nowhere near as big as that river.

But I am from this Province and have lived on that peninsula - the entire
place is a quagmire of hills and gullies.  I do not believe that this river
is level with the ocean, at least not to this extent.  The data source for
it is NRCAN CANVEC 8.0.  I reviewed the Natural Resources Canada "Toporama"
map for the area to check the altitude of the river as it extends
eastward.  The river passes to the south of "Morgans Pond" and, as it does
so, crosses a 50ft topographical line there.  So, in my mind, that means
that it must be descending as it moves to the west and can't be considered
ocean at this point, at least.

With that in mind, I am just looking for some input from the group here.  I
don't want to change something like that only to find I was wrong for one
reason or another.

Thanks,

Adam
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