866909 highlighted in yellow on this map showing the 'spike' of cuu claims in the north along the park boundary:

https://webmaps.gov.bc.ca/appsdata/imf/net/pdf/map7459021072924026665.pdf

For reference, the SC deposit is just outside of this map to the south, pretty much directly below 866909.

If the aerial mags extend 7kms north of last year's survey, they would extend about 3kms north of 866909.