Studying of physical properties and element of Mae-Nam Khong sand from Ubon Ratchathani, Amnatcharoen, and Mukdahan. Inclicated that inquantity Ubon Ratchathani and Mukdahan particle size of 0.149 mm were respectively 46.79%, 81.34%. The most of Amnatcharoen particle size of 0.075 mm particle size was 58.74%.Moisture of the Amnatcharoen sand was the highest in percentage content of 1.18% whereas the sand from Ubon Ratchathani and Mukdahan were 0.91% and 0.82%. Specific Gravity of the sand from Ubon Ratchathani was 2.52 as the highest ,the sand from Mukdahan and Amnatcharoen were 2.47 and 2.43. Shape of the sand from three different sites was sub-angular. The most quantity of element found was Oxygen and the lesser were Si, Fe, K, Al, Ca, Ti, Zr, Mn, Sr, and Rb.