mr009202

TORRES STRAIT and Port Moresby (Part) Block Identification Map Series B - Onshore - showing Mining Districts - Graticular Sections. The Block Identification System is a geographic grid pattern using the basic unit (a BLOCK) of 5 minutes of latitude by 5 minutes of longitude. The sub-unit (a SUB-BLOCK) is 1 minute of latitude by 1 minute of longitude. The Block Identification System is the approved reference system for Exploration Titles (Authorities to Prospect) enacted in 1967. An application for an Authority to Prospect must be described by the Block Identification System. TORRES STRAIT and Port Moresby (Part) Block Identification Map Series B - Onshore - showing Mining Districts - Graticular Sections. Compiled by the Drafting Branch, Department of Mines. Published by the Department of Mines, Queensland.