24 in by 24 in (600 mm by 600 mm) Alaska highway shield, made to the specifications of the 2003 sign design specifications (sign M1-5). Uses the Roadgeek
GeoFile 2011-11. https://data.geology.gov.yk.ca/Reference/95879#InfoTab Gorbatschev, R. and Bogdanova, S., 1993: Frontiers in the Baltic Shield, Precambrian
GeoFile 2011-11. https://data.geology.gov.yk.ca/Reference/95879#InfoTab Gorbatschev, R. & Bogdanova, S., 1993: Frontiers in the Baltic Shield, Precambrian