A natural transportation barrier is a natural feature that prevents or slows down travel. A natural corridor is a path that make travel easier.
dirt roads and horses
barriers: snow rocky mtns
corridors: lakes brigdes
barriers are rocky taran and moutins.
corridors are rivers and lakes.
barrier is easy to transport and corridor i harder to transport items or food
Mountians and plains
river and lakes and then it would be rocky mountains
Barrier- mountian, snow drift
Corridor- valey, river
ON THE UNITED STATES BORDAER
Rivers, mountains, lakes