Investigation of Ancient River at Lembah Bujang, Kedah, Malaysia S. Ramzul Ihsan Student, Geophysics Section, School of Physics, 11800 Universiti Sains Malaysia, Penang, Malaysia e-mail:
[email protected] Dr. M.M. Nordiana Senior Lecturer Geophysics Section, School of Physics, 11800 Universiti Sains Malaysia, Penang, Malaysia e-mail:
[email protected] Dr. Rosli Saad Senior Lecturer Geophysics Section, School of Physics, 11800 Universiti Sains Malaysia, Penang, Malaysia e-mail:
[email protected] Dr. Mokhtar Saidin Professor Centre for Global Archeological Research Malaysia, 11800 Universiti Sains Malaysia, Penang, Malaysia e-mail:
[email protected] Umi Maslinda Student, Geophysics Section, School of Physics, 11800 Universiti Sains Malaysia, Penang, Malaysia e-mail:
[email protected] Hazrul Hisham Student, Geophysics Section, School of Physics, 11800 Universiti Sains Malaysia, Penang, Malaysia e-mail:
[email protected] Nabila Sulaiman Student, Geophysics Section, School of Physics, 11800 Universiti Sains Malaysia, Penang, Malaysia e-mail:
[email protected] ABSTRACT The use of geophysical methods in archeological survey is a technology often used nowdays because this method is not too difficult and easy to administer. The objective of the study was to detect the possible ancient river in Sungai Batu, Lembah Bujang Kedah using magnetic method. The magnetic method was performed using G-856 proton magnometer and the spacing between stations was 20m spacing gridding. The magnetic data was processed by ulitizing Microsoft Excels and Surfer8 software which was displayed in a form of countaring and revealed low residual zones shown possible ancient river. The results of low magnetic values(-280nT to - 400nT) indicated the existed of ancient river within study area.