Fascinating.

Wikipedia <https://en.wikipedia.org/wiki/Point_Pelee_National_Park> puts Point 
Pelee at 41°57â€Č51″N 82°31â€Č4″W but looking closely via Google Maps the southern 
tip is at about 41.909ÂșN, definitely below the 42ÂșN parallel which is the 
border between Oregon and California. Yreka and Crescent City are both south of 
41.909ÂșN but Smith River is not, and there are some tiny California communities 
north of Ontario’s southern tip.

I recently tripped over a variation of this when adding a new (still-hidden) 
feature to GCmap which lets you add geographical extents without faking them 
via hidden points, e.g.,

http://www.gcmap.com/mapui?P=e:US48 <http://www.gcmap.com/mapui?P=e:US48>

They don’t always work well because they are (mostly) derived from facilities 
in the GCmap database, which misses extremes of some areas and leaves blanks 
for political subdivisions which lack any landing facilities.

When debugging the data for Canada, a noticed a “bug” with Ontario. There is a 
debug version of the extent directive which draws its outlines and it looks 
like this for Ontario:

http://www.gcmap.com/mapui?P=extentv:CAON,CYPT 
<http://www.gcmap.com/mapui?P=extentv:CAON,CYPT>

The “bug” turned out to be Pelee Island Airport 
<http://www.gcmap.com/airport/CYPT>. It took my a few minutes to convince 
myself that is was legitimate and not crap data. (I did turn up some other data 
which was indeed crap.)

 -- Karl


> On Aug 30, 2025, at 7:40 PM, Alan Bender via Mifnet <mifnet@lists.mifnet.com> 
> wrote:
> 
> ï»ż
> And Point Pelee, Ontario, Canada, is actually SOUTH of some communities in 
> California, including Yreka, Smith River,
> Crescent City, and a few others.
> 
> Alan 
> 
>> On Aug 30, 2025, at 7:04 PM, Helane Becker via Mifnet 
>> <mifnet@lists.mifnet.com <mailto:mifnet@lists.mifnet.com>> wrote:
>> 
>> ï»ż And Cape May NJ is south of Annapolis MD and about on par with Washington 
>> DC
>> Sent from my iPhone
>> 
>>> On Aug 30, 2025, at 7:41 PM, Viggo Butler via Mifnet 
>>> <mifnet@lists.mifnet.com <mailto:mifnet@lists.mifnet.com>> wrote:
>>> 
>>> ï»ż A map trivia is that Reno is west of Los Angeles. 
>>> 
>>> Viggo Butler
>>> Sent from my iPad
>>> 
>>>> On Aug 30, 2025, at 5:33 PM, Karl L. Swartz via Mifnet 
>>>> <mifnet@lists.mifnet.com <mailto:mifnet@lists.mifnet.com>> wrote:
>>>> 
>>>> ï»ż
>>>> Texas is big but by some measures California is even bigger. This was the 
>>>> subject of a Featured Map a few years ago:
>>>> 
>>>> http://www.gcmap.com/featured/20180815 
>>>> <http://www.gcmap.com/featured/20180815>
>>>> 
>>>> How do the horrors of driving in Houston compare to those of driving in 
>>>> Los Angeles? I was surprised that Houston encompasses about 36% more land 
>>>> area than Los Angeles, though the LA metro sprawl is larger. Even San 
>>>> Antonio is bigger than LA, another surprise.
>>>> 
>>>>  -- Kal
>>>> 
>>>> 
>>>>> On Aug 30, 2025, at 10:27 AM, Dan Reed via Mifnet 
>>>>> <mifnet@lists.mifnet.com <mailto:mifnet@lists.mifnet.com>> wrote:
>>>>> 
>>>>> Not a real sign (at least I don’t think it is), but the sign’s got it 
>>>>> about right
. assuming this sign is at/near the Texas/Louisiana border 
>>>>> near Shreveport.
>>>>>  
>>>>> People think I’m joking when I tell them that the halfway point between 
>>>>> my home in Fort Worth and San Diego is El Paso (which is STILL in Texas, 
>>>>> but a very HARD 13 hour drive
 btw
 it’s almost as far from my house to 
>>>>> Harlingen down at the southern tip of the state)). But I’m not. The scale 
>>>>> of Texas is just hard for people who’ve never lived here to wrap their 
>>>>> heads around.  And while the time from the TX/LA border to Houston is 
>>>>> really only about 5 hours or so, if you’re driving that way you really 
>>>>> should “forget about it” ‘cause the traffic and the scale of the 
>>>>> extraordinarily crowded superfreeways in the Houston area are, shall we 
>>>>> say, “discouraging” to the Nth degree.  This scale is what made it 
>>>>> possible for a little 3-plane intra-state airline called Southwest to 
>>>>> survive when it started up 51 years or so ago. If you’re a business 
>>>>> person on a tight schedule and a tight budget driving between Texas 
>>>>> cities can be a real time eater, a personal life-disrupter, and expensive 
>>>>> if you’ve gotta get a hotel overnight just to attend a 90-minute business 
>>>>> meeting.
>>>>>  
>>>>> (Yes, the scale of Alaska is way, way bigger still
 but so few people 
>>>>> live up there, and there simply are no cross-state highways there, so 
>>>>> nobody ever thinks about how long the theoretical driving distances up 
>>>>> there would be).
>>>>>  
>>>>> Dan Reed
>>>>> Transplanted Texan
>>>>>  
>>>> --------------------------------------------------------------------------
>>>> Revised: 20250507
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