Which datum?

Just kidding!! :)

--- In BoundaryPoint@y..., bjbutler@b... wrote:
> The "49th parallel" portion of theUS/Canada boundary
> is marked by 1039 monuments and crosses the 49th parallel 15 times,
> at locations between the following pairs of monuments
>
> Monument 47 - N49°00'00.88 W121°56'03.06"
> Monument 48 - N48°59'56.16 W121°50'57.72"
>
> Monument 61 - N48°59'59.98 W121°26'37.59"
> Monument 62 - N49°00'00.35 W121°24'52.24"
>
> Monument 95 - N49°00'00.43 W120°10'50.27"
> Monument 96 - N48°59'59.96 W120°08'27.77"
>
> Monument 105 - N48°59'59.91" W119°52'41.14"
> Monument 106 - N49°00'00.20" W119°50'30.02"
>
> Monument 188B - N49°00'00.18" W117°17'54.11"
> Monument 189 - N48°59'59.95" W117°17'20.50"
>
> Monument 207 - N48°59'59.77" W116°29'53.45"
> Monument 208 - N49°00'00.75" W116°26'17.65"
>
> Monument 239 - N49°00'00.28" W115°21'30.96"
> Monument 240 - N48°59'59.38" W115°17'48.00"
>
> Monument 249 - N48°59'59.83" W114°58'17.50"
> Monument 250 - N49°00'00.36" W114°55'19.74"
>
> Monument 268 - N49°00'01.60" W114°15'33.90"
> Monument 269 - N48°59'59.98" W114°11'59.37"
>
> Monument 403 - N48°59'59.92" W109°42'48.15"
> Monument 404 - N49°00'00.14" W109°40'24.07"
>
> Monument 419 - N49°00'00.19" W109°14'27.92"
> Monument 420 - N48°59'59.95" W109°12'37.66"
>
> Monument 479 - N48°59'58.96" W107°23'17.47"
> Monument 480 - N49°00'00.31" W107°21'39.22"
>
> Monument 752 - N48°59'59.91" W98°58'47.15"
> Monument 753 - N49°00'00.04" W98°57'27.78"
>
> Monument 881 - N49°00'00.018" W96°09'27.753"
> Monument 882 - N48°59'59.990" W96°08'08.489"
>
> TP BUFFALO BAY - N48°59'55.96" W95°09'10.65"
> Monument 913 - N49°10'50.280" W95°09'10.972"
>
>
> Only one monument actually staddles the 49th parallel:
>
> Monument 490 - N49°00'00.00" W106°59'06.45"