To provide a flat slope exclusive to artificial ski area, causing no waving.

This slope exclusive to artificial ski area is formed by connecting and laying a plurality of mats 1 having the prescribed area to and on a slope face 50. The slope is composed of the mats 1 for forming a plurality of locking projections 2 on the reverse, a longitudinal member 51 arranged in the longitudinal direction on the slope face 50, and a connector 52 for connecting this longitudinal member 51 and the mats 1. This connector 52 is locked and arranged between the locking projections 2 of the mats 1, and this connector 52 is also provided with an arranging part 53 for arranging the longitudinal member 51. The connector 52 is provided with a pressing part 54 for pressing an outside surface of the longitudinal member 51 arranged in the arranging part 53, and a recessed part 55 for allowing deformation of the longitudinal member 51, is arranged on an inner surface of the arranging part 53 in an opposed position of the pressing part 54.