How To Find Gold In Clay & Sand: Methods For Panning In Rivers
This industry comprises (1) establishments primarily engaged in developing the mine site and or mining, quarrying, dredging for sand and gravel, or mining clay (e.g., china clay, paper clay and slip clay), and (2) preparation plants primarily engaged in beneficiating (e.g., washing, screening, and grinding) sand and gravel, clay, and ceramic and refractory minerals.Sand and gravel - Sand and gravel for construction purposes are mined in about half the counties in North Carolina. The Sandhills region in Anson, Moore, Lee, Harnett, and Richmond counties is the principle producing area. Much of the sand is obtained from the Pinehurst Formation. Gravel is mined from the overlying terrace gravels.