<P> Almost all of the India--Bangladesh enclaves were extinguished by the Land Boundary Agreement between the two states, effective after 31 July 2015, which exchanged all first - order exclaves . The following quadripoint (s) was thus also extinguished . The international boundary touched (or crossed) itself at one (or possibly two) locations shared by India (West Bengal state, Cooch Behar district) and Bangladesh (Rangpur Division, Lalmonirhat District). A confirmed instance occurred in Mathabhanga subdivision and a less definite one in Mekhliganj subdivision (of Cooch Behar), involving the Bara Saradubi enclave of Hatibandha thana and the Jote Nijjama enclave of Patgram thana (of Lalmonirhat), respectively . Additional political subdivision did not appear to result in either case . Its (or their) international stature had been intermittent since Mughal times and was a result of the Radcliffe Award of 1947 . </P> <P> The international boundary touches (or crosses) itself, without imparting political subdivision, within the commingled municipalities of Baarle - Nassau (North Brabant, Netherlands) and Baarle - Hertog (Antwerp, Belgium). The peculiar situation, which occurs at Baarle but once (at the touchpoint of Belgian enclaves H1 and H2), has existed at least cadastrally since about 1198, but its current international distinction dates only from 1830 . </P> <P> The creation of the Canadian territory of Nunavut might have resulted in the creation of a quadripoint between the provinces of Saskatchewan and Manitoba and the territories of Nunavut and Northwest Territories (NWT). Nunavut was officially separated from the Northwest Territories in 1999, though the boundaries had been defined in 1993 by the Nunavut Act and the Nunavut Land Claims Agreement . Both documents define Nunavut's boundary as including the intersection of 60 ° 00'N latitude with 102 ° 00'W longitude, being the intersection of the Manitoba, Northwest Territories and Saskatchewan borders . However, the northernmost point of the Manitoba--Saskatchewan border as surveyed is slightly off from 60 ° north 102 ° west, therefore the laws are not perfectly clear about whether the Nunavut--NWT boundary, which has not been surveyed, is to meet the others in a quadripoint or not . </P> <P> Both of the only known international quadripoints in the Western Hemisphere occur on the Canada--United States border along remote mountain crests . One, which joins the Canadian provinces of Alberta (Improvement District Number 4) and British Columbia (Regional District of East Kootenay) with the Montana counties of Flathead and Glacier where the 49th parallel crosses the Continental Divide also unites an international peace park comprising national parks of both countries (Waterton Lakes and Glacier, respectively). It has been a politically important and precisely stipulated international boundary point since 1818; has been monumented since 1876 (now by a hollow metallic obeliskoid marker numbered 272); and has maintained a quadripartite status since 1893 . </P>

What type of grid line forms the border between saskatchewan and manitoba