mat surface 226 disposed therebeneath an embossed surface pattern surface 234 of plate 230 is thus formed with the appropriate pattern configuration for imparting the select surface pattern thereto a crisscrossing surface pattern 236 is shown adjacent the end 238 of plate 230 diagrammatically indicating the presence of a surface pattern thereon a variety of surface patterns are of course contemplated to solve various erosion problems after the impression of the surface pattern 236 to the surface 226 of the elongate mat 210 a drying period for the particular bonding agent may be necessary for purposes of simplicity no appreciable distance for drying of mat 210 is shown between end 238 of compression plate 230 and cutting assembly 240 described below it should be noted however that an appropriate distance for interim drying and or curing of the bonding agent for maintaining the permanence of the pattern may be necessary in addition some conventional equipment such as a forced air blower heater or the like may likewise be necessary and would be available in accordance with conventional manufacturing technology in a preferred embodiment the plate 230 is heated and when sufficient time has passed it raises this allows the mat to proceed on to the edge cutting area and the.