- 1239 - Characteristics of Bukit Bunuh Subsurface Materials: Integration of Seismic Refraction & Geotechnical Borehole Logs Ragu Ragava Rao Postgraduate Student, Geophysics Section, School of Physics,11800 University Sains Malaysia, Penang, Malaysia; e-mail: raguragav3r@gmail.com Dr. Rosli Saad Senior Lecturer, Geophysics Section, School of Physics, 11800 Universiti Sains Malaysia, Penang, Malaysia; e-mail: rosli@usm.my Dr. Mokhtar Saidin Professor, Centre for Global Archeological Research Malaysia, 11800 Universiti Sains Malaysia, Penang, Malaysia; e-mail:mmokh@usm.my M. M. Nordiana Postgraduate Student, Geophysics Section, School of Physics,11800 University Sains Malaysia, Penang, Malaysia; e-mail: mmnordiana@gmail.com I. N. Azwin Postgraduate Student, Geophysics Section, School of Physics,11800 University Sains Malaysia, Penang, Malaysia; e-mail: nurazwinismail@yahoo.com ABSTRACT Geophysical method is the most cost saving and efficient way to know the subsurface layer. Geophysical method does not harm the nature of earth. Geophysical method that we use in this study was Seismic Refraction and Geotechnical Borehole. The study was conducted near to Kampung Belimbing ( Belimbing Village) in Lenggong Valley. Purpose of the study was to map bedrock and structure of subsurface using seismic data and correlate with existing geotechnical borehole log. The major disturbance in this survey was vehicles and strong winds that trigger the geophones automatically. Velocity of rock that interpreted from seismic survey correlates well with the type of rock that acquired from boring sample. KEYWORDS: Lenggong, Seismic Refraction, Geotechnical Borehole, Velocity.