(PDF) MODERN SURVEY INSTRUMENTS AND THEIR USE
MODERN SURVEY INSTRUMENTS AND THEIR USE IN MINE SURVEYING Buguna**, Dheeraj Kumar**, Sunil Kumar*** *Associate Professor, ** Sr. Lecturer, ** Senior Technical Assistant Department of Mining Engineering, Indian School of Mines, Dhanbad 826004 ABSTRACT Although surveying techniques have always played a primary role in collecting data for mapping, recently new Instruments