Casual use means activities ordinarily resulting in no or negligible disturbance of the public lands or resources. For example -
(1) Casual use generally includes the collection of geochemical, rock, soil, or mineral specimens using hand tools; hand panning; or non-motorized sluicing. It may include use of small portable suction dredges. It also generally includes use of metal detectors, gold spears and other battery-operated devices for sensing the presence of minerals, and hand and battery-operated drywashers. Operators may use motorized vehicles for casual use activities provided the use is consistent with the regulations governing such use (part 8340 of this title), off-road vehicle use designations contained in BLM land-use plans, and the terms of temporary closures ordered by BLM.
(2) Casual use does not include use of mechanized earth-moving equipment, truck-mounted drilling equipment, motorized vehicles in areas when designated as closed to “off-road vehicles” as defined in § 8340.0-5 of this title, chemicals, or explosives. It also does not include “occupancy” as defined in § 3715.0-5 of this title or operations in areas where the cumulative effects of the activities result in more than negligible disturbance.