it does compare with NOT, the co CEO's at the time punched 150 holes into the blackbirds yeilding a whopping 7.5 million measured and indicated and another 3.5 million inferred for the high grade zone and PRB puched 1-10th the amount..15 into Blackcreek and come out with 5.7 M and I and 2.7 inferred, the JV project got very good bang for the buck I'd say.

Blackcreek looks to be roughly 1/4 the tonnage of Big Daddy.

Deposit/Code   Category    Cr2O3% Interval   Tonnes x 106   Avg. Cr2O3%   Cr/Fe Ratio   
BD 1 (100)     Indicated   25.0 - >35.0      13.4           40.49         2             
BD 2           Indicated   25.0 - >35.0      9.8            40.88         2             
Grand Total    Indicated                     23.2           40.66         2             
                                                                                        
                                                                                        
BD 1 (100)     Inferred    25.0 - >35.0      7.2            38.48         2             
BD 2           Inferred    15.0 - >35.0      9.1            39.57         2             
Grand Total    Inferred                      16.3           39.09         2