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[cohp] Digest Number 5430
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County High Pointing in all 50 states
Yahoo! Groups
County High Pointing in all 50 states Group
3 Messages
Digest #5430
1
Re: Geo Centers - Northern New England by "roy.schweiker@juno.com" accidentlwanderer
2a
Re: Geo Center - North America by gregslayden
2b
Re: Geo Center - North America by "Andrew Karr" karrhorn

Messages
1
Re: Geo Centers - Northern New England
Mon Dec 19, 2016 8:31 am (PST) . Posted by:
"roy.schweiker@juno.com" accidentlwanderer
I looked at satellite maps of the geocenters of the Northern New England states and all seem to be nondescript liners than I am in no hurry to visit

ME seems to be in a giant clearcut far from public roads although most timber companies allow private access

NH is also in a recently-logged area, but close to civilization

VT seems to be in the woods near a farm

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2a
Re: Geo Center - North America
Mon Dec 19, 2016 9:53 am (PST) . Posted by:
gregslayden
The geographic term "North America" has many possible interpretations, depending on context and usage. That makes finding any geographic center of North America very difficult. The various components of North America are listed below, and various definitions include or exclude all but the first category:


*USA and Canada
*Mexico
*Central America
*Caribbean Islands (including Bahamas and Bermuda)
*Greenland (and St. Pierre and Miquelon)


The political border between Panama and Colombia is often used for the continental border, but that is a man-made construct and a better purely geographic line might be one the follows rivers from a low prominence saddle. Also, some Caribbean Islands (e.g. Aruba, Trinidad) are very close offshore of Venezuela but usually considered North American, but others (e.g. Margerita) are not, due to political/cultural reasons.


Greenland is often not considered part of North America since it is a dependency of Denmark. If one does consider Greenland part of North America, Iceland is closer to Greenland than to Norway so one could argue for its inclusion, too.


And then there is the issue of water bodies. Do the Great Lakes count for the area used to calculate the center, or not? Is there a size cutoff for size of a lake for inclusion? I think most people would agree that a small pond should count, but any limit is arbitrary.


To me, the more interesting points would be the "poles of inaccessibility&quot; for the continents, which are the points furthest from the ocean in all directions. These can be calculated more reliably and don't rely on arbitrary continental definitions. For North America, the "pole of inaccessibility&quot; is near Allen, SD, near 43.36N 101.97W. This is 1030 miles from marine water at the Pacific, Hudson Bay, and the Gulf of Mexico.




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2b
Re: Geo Center - North America
Mon Dec 19, 2016 10:49 am (PST) . Posted by:
"Andrew Karr" karrhorn
Someone was asking me about the center of maximum distance of the US (i.e. The furthest you could be from any land border). Has that been calculated?

Sent from my iPhone

> On Dec 19, 2016, at 12:53, gregslayden@hotmail.com [cohp] <cohp@yahoogroups.com> wrote:
>
> The geographic term "North America" has many possible interpretations, depending on context and usage. That makes finding any geographic center of North America very difficult. The various components of North America are listed below, and various definitions include or exclude all but the first category:
>
> *USA and Canada
> *Mexico
> *Central America
> *Caribbean Islands (including Bahamas and Bermuda)
> *Greenland (and St. Pierre and Miquelon)
>
> The political border between Panama and Colombia is often used for the continental border, but that is a man-made construct and a better purely geographic line might be one the follows rivers from a low prominence saddle. Also, some Caribbean Islands (e.g. Aruba, Trinidad) are very close offshore of Venezuela but usually considered North American, but others (e.g. Margerita) are not, due to political/cultural reasons.
>
> Greenland is often not considered part of North America since it is a dependency of Denmark. If one does consider Greenland part of North America, Iceland is closer to Greenland than to Norway so one could argue for its inclusion, too.
>
> And then there is the issue of water bodies. Do the Great Lakes count for the area used to calculate the center, or not? Is there a size cutoff for size of a lake for inclusion? I think most people would agree that a small pond should count, but any limit is arbitrary.
>
> To me, the more interesting points would be the "poles of inaccessibility&quot; for the continents, which are the points furthest from the ocean in all directions. These can be calculated more reliably and don't rely on arbitrary continental definitions. For North America, the "pole of inaccessibility&quot; is near Allen, SD, near 43.36N 101.97W. This is 1030 miles from marine water at the Pacific, Hudson Bay, and the Gulf of Mexico.
>
>
>
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