Welcome to the Frontier Trading Post website. Home of the Frontier Easy Entry Cart. Frontier Trading Post Inc. have been quality manufacturers of horse carts, cob/arab carts, pony carts, llama carts and miniature horse carts since 1953. New Product - Mini Frontier EasyEntry Cart with wooden floorboard and dash (as pictured above) - $495 Just Arrived: Leather #3500 Driving Harness Click for ...