When I saw this TB wanted its picture with Navigation /trig points, I tried to find the Canadian equivalent. The Canadian Base Network (CBN) is a network of pillars capped with a plate having a threaded bolt on which a GPS antenna or a theodolite can be screwed to. These pillars were positioned three-dimensionally with GPS to centimetre-level accuracy. Although these pillars are usually appx 200 km apart in the more populated areas, I found one in Etobicoke (Toronto area), on the grounds of Humber College on a knoll in the arboretum. Took US-Kiwi TB for some photos on a beautiful summer day. He will soon be on his way back to NZ.
This entry was edited by Hunter and the Hownd on Sunday, 25 July 2010 at 22:06:11.