UNTIL THE MERCURY SURFACE SPACE ENVIRONMENT GEOCHEMISTRY AND RANGING (MESSENGER) SPACECRAFT INSERTED INTO ORBIT AROUND MERCURY IN 2011 ALMOST 60% OF THE NORTH POLAR REGION BOREALIS QUADRANGLE (H-1) REMAINED IMAGED AT ILLUMINATION AND VIEWING GEOMETRIES POORLY SUITED FOR MORPHOLOGICAL OBSERVATIONS. FULL IMAGE COVERAGE OF H-1 IS NOW AVAILABLE ENABLING THE ABILITY TO CREATE NEW GEOLOGIC MAPS. GEOLOGIC MAPS PROVIDE A UNIQUE SYNTHESIS OF THE SURFACE OF A PLANETARY BODY TO ADDRESS HOW GEOLOGIC PROCESSES AND THE RESULTING UNITS AND FEATURES RELATE TO EACH OTHER IN SPACE AND TIME. GEOLOGIC MAPS BECOME A BASIS FOR THE COMPLETION OF SCIENTIFIC INVESTIGATIONS OF PLANETARY SURFACES REPRESENTING A FUNDAMENTAL TOOL THAT NOW REQUIRES AN UPDATE FOR MERCURY. WE PROPOSE TO CREATE A NEW GEOLOGIC MAP OF THE BOREALIS QUADRANGLE (H-1) ON MERCURY AT A SCALE OF 1:5 000 000 (1:5M) FOLLOWING THE MAPPING STANDARDS SET BY THE UNITED STATES GEOLOGICAL SURVEY (USGS). THE PRIMARY OBJECTIVE OF THE PROPOSED EFFORT IS TO FACILITATE AND AID FUTURE INVESTIGATIONS RELATED TO THE GEOLOGY AND GEOLOGIC HISTORY OF THE NORTH POLAR REGION OF MERCURY BY IMPROVING UPON THE ORIGINAL MARINER 10-BASED USGS GEOLOGIC MAP (I-1660; GROLIER AND BOYCE 1984) AND BY LEVERAGING THE NEW GLOBAL DATASETS OBTAINED MESSENGER. THE PRIMARY DELIVERABLE OF THIS EFFORT WILL BE A SCIENTIFIC INVESTIGATIONS MAP (SIM) PUBLISHED THROUGH THE USGS ENABLING DISSEMINATION THROUGHOUT THE SCIENTIFIC COMMUNITY.