GPS-based Surveying
From 1993 to 1995, Underhill surveyed the Gwich’in Land Claim boundaries across NT and Yukon, securing over 24,000 km² of land.
Underhill surveyed over 2,700 boundary corners across 1.9 million km² for the Nunavut Land Claim—Canada’s largest land settlement.
Underhill completed cadastral surveys for Pre-Effective Lands under the Maa-nulth Treaty, supporting First Nations self-governance on Vancouver Island.
Underhill surveyed over 2,000 km of boundaries for the Inuvialuit Final Agreement—the first GPS-based land claim survey in Canada
From 1995 to 2011, Underhill completed 63 legal surveys for Yukon First Nations under the Umbrella Final Agreement, supporting land ownership and self-governance.
Underhill surveyed 232 parcels for VGFN in 2014, enabling future residential and commercial planning through legal monumented boundaries.
Underhill surveyed 679 corners and 3,500+ km of natural boundaries for the Sahtu Land Claim in the Western Arctic from 1995 to 2003.