Starting in the southeast is North Portal or the Port of North Portal customs which is the province's only duty-free shop. Coalfields No. 4 rural municipality is dependent upon its grazing lands, oil wells and coal mining. The land on either side of the Souris River is too stony for agricultural purposes. The little hamlet of Pinto comprises post office and rail siding. Roche Percée, an unorganized area is named after a geophysical feature of the area. Short Creek Cairn is near the Roche Percee turn off from Highway 39. Located just off of Sk Hwy 39, are two arches created by limestone rocks upon which historic animals, and initials are carved. The local first nation found this site to be a power centre. This Short Creek Cairn is also a resting place for the North-West Mounted Police in 1874 on the Great March West. Henri Julien of the NWMP ride wrote in 1874, that the base was and about high. Although the underground coal mines which lined the Souris River valley have closed, there are two large dragline surface coal mines still operating supplementing agricultural income for residents of Bienfait and Roche Percée.