Figure C-1. This map, taken from Braden (2011), shows the arctic ice road that extends north from Yellowknife.
Figure B-1. Cross section of the Slave craton, constructed from surface geology, geophysics, and samples (mantle rock and diamond) provided by kimberlite eruptions and mining operations. Much of the detailed structure and age information between 30 and 250 km depths is only possible because suites of diamonds have been analyzed. Simplified from Helmstaedt (2009).