An off-road excavation apparatus comprising: a chassis having a length that extends from a front end to a rear end of the off-road excavation apparatus, the chassis also having a width oriented perpendicular to the length; a boom pivotally attached to the rear end of the chassis; a cutting component mounted at the rear, free end of the boom, the cutting component including a drum on which a plurality of teeth are mounted, the drum being configured to rotate about a central axis; and a dust suppression arrangement for reducing the amount of dust emitted by the off-road excavation apparatus during mining operations, the dust suppression arrangement including a source of vacuum for drawing dust laden air from a region adjacent to the drum, an air cleaner for removing dust from the air drawn from the region adjacent the drum by the vacuum, and a flexible dust barrier extending along a length of the drum and along ends of the drum, the flexible dust barrier having a construction that is pervious to debris generated by the cutting component, the flexible dust barrier having an upper end and a free lower end configured to extend to a location near a ground surface when the cutting component is in an excavating position, wherein the flexible dust barrier has a height of at least 0.34 meters between the upper end and the free lower end; and a shroud structure at least partially covering the cutting component, wherein the upper end of the flexible dust barrier is attached to the shroud structure such that the flexible dust barrier extends along a majority of a perimeter of the shroud structure. a chassis having a length that extends from a front end to a rear end of the off-road excavation apparatus, the chassis also having a width oriented perpendicular to the length; a boom pivotally attached to the rear end of the chassis; a cutting component mounted at the rear, free end of the boom, the cutting component including a drum on which a plurality of teeth are mounted, the drum being configured to rotate about a central axis; and a dust suppression arrangement for reducing the amount of dust emitted by the off-road excavation apparatus during mining operations, the dust suppression arrangement including a source of vacuum for drawing dust laden air from a region adjacent to the drum, an air cleaner for removing dust from the air drawn from the region adjacent the drum by the vacuum, and a flexible dust barrier extending along a length of the drum and along ends of the drum, the flexible dust barrier having a construction that is pervious to debris generated by the cutting component, the flexible dust barrier having an upper end and a free lower end configured to extend to a location near a ground surface when the cutting component is in an excavating position, wherein the flexible dust barrier has a height of at least 0.34 meters between the upper end and the free lower end; and a source of vacuum for drawing dust laden air from a region adjacent to the drum, an air cleaner for removing dust from the air drawn from the region adjacent the drum by the vacuum, and a flexible dust barrier extending along a length of the drum and along ends of the drum, the flexible dust barrier having a construction that is pervious to debris generated by the cutting component, the flexible dust barrier having an upper end and a free lower end configured to extend to a location near a ground surface when the cutting component is in an excavating position, wherein the flexible dust barrier has a height of at least 0.34 meters between the upper end and the free lower end; and a shroud structure at least partially covering the cutting component, wherein the upper end of the flexible dust barrier is attached to the shroud structure such that the flexible dust barrier extends along a majority of a perimeter of the shroud structure.