It is unlawful for any person to conduct any mining operations on those certain lots owned by Sierra County, located in the Downieville Townsite and designated as lots 103, 104, 105, 106, 107, 108, 109, 111, 112, and 113, other than gold panning, sniping and operation of portable, motorless, single unit, hand-carried sluice boxes on those portions of the aforesaid lots located below the mean high water mark of the river on said lots. For the purpose this section and SCC 9.04.090, mining operations include but are not limited to operations of dredges, drag lines, sluice boxes which are not portable, motorless, single unit and capable of being hand carried by a single individual, and activities which involve the use of tools other than handheld, human powered, motorless tools capable of being carried by a single individual. Violation of this section shall constitute an infraction. Each day during which a violation of this section occurs shall constitute a separate offense. (Ord. 681, eff. 6/5/84)