In 1884 Charles Ora Card (see Cardston) led homesteaders to Canada on a trail through this gap which also was very near the border. It then became well-known as Immigration Gap. The route was used by many who settled in Canada. It was an old Indian trail and was also used by ranchers to drive cattle to the big ranches in Canada. A road was built to the border here on the Canadian side but it was not continued by the American government.

Approximately 78 km south-west of Lethbridge.