[Tagging] Feature Proposal – RFC – place=peninsula

Markus selfishseahorse at gmail.com
Sat Dec 29 15:23:24 UTC 2018


On Thu, 27 Dec 2018 at 22:14, Graeme Fitzpatrick <graemefitz1 at gmail.com> wrote:
>
> On Thu, 27 Dec 2018 at 19:05, Martin Koppenhoefer <dieterdreist at gmail.com> wrote:
>>
>> is there a difference to a “cape”? What about a promontory? Shall we distinguish these, and if yes how and according to which criteria?
>
> Same thing then applies to headland & isthmus? The natural=cape wiki makes reference to See Also natural-isthmus (but the page doesn't exist!) & lists natural=headland (also doesn't exist) as a Possible Tagging Mistake. Why?

An isthmus is a narrow strip of land with water on both sides that
connects two bigger land masses, see e.g. the L'Isthme de Penthièvre,
which connects the peninsula of Quiberon with mainland France:

https://www.openstreetmap.org/node/2450239624#map=11/47.5485/-3.0755

Promontories, headlands and capes seem to be almost synonymes, see
e.g. the definitions by Merriam-Webster:

  * promontory: (a) a high point of land or rock projecting into a
body of water; (b) a prominent mass of land overlooking or projecting
into a lowland
  * headland: a point of usually high land jutting out into a body of
water: promontory
  * cape: a point or extension of land jutting out into water as a
peninsula or as a projecting point

The difference from a peninsula (from Latin paeninsula = 'almost
island') seem to be the connection to the mainland: it is
significantly wider in case of a promontory/headland/cape, but an
isthmus in case of a peninsula. Merriam-Webster:

  * peninsula: a portion of land nearly surrounded by water and
connected with a larger body by an isthmus

See also the diagrams on this web page:

http://www.eschooltoday.com/landforms/what-is-a-cape-and-peninsula-landform.html

> I would think all of these should come under natural=xxxxx, & should be mapped as they are named: =headland, =cape, =peninsula, =promontory etc etc

If promontory, headland and cape is already part of the name, why
duplicating it with different tags?

Regards

Markus



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