Author in subarctic Canada
Thomas J. Berglin, PE, has over 20 years of experience with frozen ground as it relates to foundation performance.  He is a registered Professional Engineer in Alaska, District of Columbia, Georgia, Hawaii, Idaho, Minnesota, North Carolina, Ohio, Oregon, and Washington and has experience from the tropics to the arctic on both sides of the International Date Line.
Author in sub-arctic Canada
Author in Udokan Range, Siberia, Russian Federation
Author in Cajamarca District, Peru