A conveyor system (138, 238, 338) for transporting sand that is moved outwardly, from a lower end of an enclosure region in at least one animal stall toward a gutter, to a discharge location, the conveyor system comprising: a conveyor assembly comprising: a transportation element for moving the sand; a drive subassembly for moving the transportation element on a predetermined path between a preselected region that is located between the lower end of the enclosure region and the gutter, and the discharge location; at least one guide subassembly, for guiding the transportation element along at least one portion of the predetermined path when the transportation element is moved by the drive subassembly; at least one support assembly for at least partially defining a slot in the preselected region in which a part of the transportation element is receivable, for receiving at least a portion of the sand moved outwardly from the lower end of the enclosure region; at least one grate located at least partially above the part of the transportation element positioned in the preselected region by said at least one support assembly; and said at least one grate being adapted to permit the portion of the sand moved outwardly from the lower end of the enclosure region to pass through said at least one grate onto the part of the transportation element thereunder, for movement of said portion thereby to the discharge location, where the portion of the sand is dischargable from the transportation element at the discharge location. a conveyor assembly comprising: a transportation element for moving the sand; a drive subassembly for moving the transportation element on a predetermined path between a preselected region that is located between the lower end of the enclosure region and the gutter, and the discharge location; at least one guide subassembly, for guiding the transportation element along at least one portion of the predetermined path when the transportation element is moved by the drive subassembly; a transportation element for moving the sand; a drive subassembly for moving the transportation element on a predetermined path between a preselected region that is located between the lower end of the enclosure region and the gutter, and the discharge location; at least one guide subassembly, for guiding the transportation element along at least one portion of the predetermined path when the transportation element is moved by the drive subassembly; at least one support assembly for at least partially defining a slot in the preselected region in which a part of the transportation element is receivable, for receiving at least a portion of the sand moved outwardly from the lower end of the enclosure region; at least one grate located at least partially above the part of the transportation element positioned in the preselected region by said at least one support assembly; and said at least one grate being adapted to permit the portion of the sand moved outwardly from the lower end of the enclosure region to pass through said at least one grate onto the part of the transportation element thereunder, for movement of said portion thereby to the discharge location, where the portion of the sand is dischargable from the transportation element at the discharge location.