Here is what Teck knowsI got this from today's news release on tmx.com
The Iron Range property is located 15km NE of Creston, BC. The property hosts numerous iron deposits which were originally staked in 1897 and were covered by Crown Grants held by Cominco Ltd. and the Canadian Pacific Railway for over 100 years. Past work on the deposits by Cominco Ltd. focused on the considerable iron oxide resource with trenching and very shallow (20m depth) diamond drilling along the Iron Range Mountain ridge. Eagle Plains staked the current claims immediately after the Crown Grants reverted in 2000 and have been systematically exploring the property since then. Exploration work to date includes geological mapping, geochemical surveys, diamond drilling and a 690 line-km airborne geophysical survey.
In other words, somebody at Cominco or whoever they were in 2000 forgot to renew the grants. Whoops! So they know a lot after decades of owning and exploring. These sections may have been on their to-do list.