I placed 2km x 2km light blue squares around the Teck Option Agreement claims to show the area that is considered adjacent to the original claims (TCK Option Agreement claims). I traced a white line (tough to see in the first image) roughly around this 2km zone.
The first image shows the approach to the 2km clause in the Agreement.
The second image shows the 2km zone with a white line encircling these original claims. Underneath is the broad, regional Aerial Magnetics from 2008. Cuu's 2011 Aerial Mags are placed on top of the Regional AM. CUU's current boundaries are shown in red and pink, current to today.
CUU updating these mineral claim maps almost on a weekly basis seems to suggest that there is a lot of importance in these maps vrs hardly any similar maps in the previous 18 months. It appears that extra effort went into makig the claim numbers visible in this map.
dyodd

bigger: http://www.flickr.com/photos/60356448@N04/7268700008/in/photostream/lightbox/

http://www.flickr.com/photos/60356448@N04/7268700200/in/photostream/lightbox/