Tweedsmuir Provincial Park in British Columbia is now divided into Tweedsmuir South Provincial Park and Tweedsmuir North Provincial Park and Protected Area. It was created in 1938 to commemorate Buchan's 1937 visit to the Rainbow Range and other nearby areas by horseback and floatplane. He wrote in the foreword to a booklet published to commemorate his visit: "I have now travelled over most of Canada and have seen many wonderful things, but I have seen nothing more beautiful and more wonderful than the great park which British Columbia has done me the honour to call by my name".
