We've told you that the most remote place on earth is Tristan da Cunha, because the island is so far from any civilized land mass and difficult to travel to. There is a different way of looking at inaccessibility. What is termed a Pole of Inaccessibility (POI) is the spot on a land mass that is furthest from any coastline. The term was coined in 1920, when even South Dakota had trains and cars, so it may seem like a nonsensical name. But the idea was developed around the exploration of the North and South Poles. The POI of North America is in Bennett County, South Dakota, 1639.623 km (1019 miles) from all three of the nearest oceans. Read about the development of the POI and where it is on all the continents at the ESRI Map Journal. -via TYWKIWDBI