GPS-based Surveying
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Gwich’in Land Claim Boundary Survey
From 1993 to 1995, Underhill surveyed the Gwich’in Land Claim boundaries across NT and Yukon, securing over 24,000 km² of land.
Nunavut Land Claim Survey
Underhill surveyed over 2,700 boundary corners across 1.9 million km² for the Nunavut Land Claim—Canada’s largest land settlement.
Sahtu Dene and Metis Final Agreement
Underhill surveyed 679 corners and 3,500+ km of natural boundaries for the Sahtu Land Claim in the Western Arctic from 1995 to 2003.