I think PRB's grade is similar to RCV about a year ago in their news releases. The next few months some higher grade intersection came in which launched the share price.

I don't see where RCV actually got to a resource est before being bought out by new gold.

just last May they had a $400 million market cap and were taken over at $550 MM in a share swap.

PRB is wound up like a spring.. deserves a much higher share price when you compar the 2 companies....JMHO but we should be at least in the $3.00 to $4.00 range right now.

Richfield drills 377.97 m of 1.09 g/t Au at Blackwater

2011-05-10 08:41 ET - News Release

Mr. Peter Bernier reports

RICHFIELD DRILLS 377.97 METRES OF 1.09 G/T AU INCLUDING 15 METRES OF 9.30 G/T AU

Richfield Ventures Corp. is providing drill results for eight holes of the 2011 30,000-metre drill campaign to expand and delineate the resource on the Blackwater gold project. The project is approximately 100 kilometres south of Vanderhoof, B.C.

Gold mineralization is seen in every hole with BW 146 returning the best result, an intersection of 378 metres grading 1.09 grams per tonne Au. The eight vertical holes were collared on the northern part of the Blackwater gold project, in which Richfield has a 75-per-cent interest and Silver Quest Resources Ltd. has a 25-per-cent interest, in which Richfield is the operator of a joint venture.

BW 141, BW 143 and BW 148 were drilled on the northeast in the Gold zone. Two holes, BW 144 and BW 147, were drilled in the centre of the joint venture ground. Three further holes, BW 142, BW 145 and BW 146, were drilled in the northwest. BW 142 and BW 145 were drilled from the same collar. Both were abandoned because of drilling difficulties.

 
DDH                    From          To    Interval          Au          Ag 
                        (m)         (m)         (m)       (g/t)       (g/t)

BW 141                   38          61          23        9.14        10.7
BW 141                  105       150.8        45.8        0.66         1.5
BW 141                  213         257          44        0.54         0.6
BW 142                   12          25          13        0.39         8.7
BW 142                   36          39           3        2.04        20.7
BW 142                   52         134          82        0.42         5.1
BW 143                   15          35          20        2.89        28.4
BW 143                   40         243         203        0.62         5.3
BW 143                  279      350.52       71.52        0.65         1.8
BW 144                   27          34           7        0.54         3.8
BW 144                   39          54          15        0.57         1.9
BW 144                  147         223          76        0.67         1.4
BW 144                  252         338          86        0.37         1.0
BW 144                  366         385          19        0.48         2.0
BW 145                   19          22           3        0.48         6.3
BW 145                   29          37           8        0.44        21.4
BW 145                   63          66           3        0.49         5.5
BW 146                   39      416.97      377.97        1.09         4.1
BW 146 including        229         244          15        9.30         8.9
BW 147                   54         101          47        0.50         2.3
BW 147                  142         169          27        0.46         2.9
BW 147                  231         242          11        0.36         4.1
BW 147                  256         284          28        0.34         1.5
BW 147                  293         321          28        0.77         3.7
BW 148                  104         111           7        0.58         1.8
BW 148                  146       171.6        25.6        1.75         5.0
BW 148               173.43      187.15       13.72        0.73         2.5
BW 148                  188         246          58        0.72         3.0
BW 148                  252         309          57        0.53         3.6

Out of a total 2,466.8 metres drilled in the eight holes, composited sections averaging 0.3 g/t Au and better total 1,505 metres, about 61 per cent of the total drilling. Out of a total 2,269 samples, 1,041 returned values above 0.3 g/t Au, about 46 per cent.

Peter Bernier, RVC president, comments: "We are naturally excited by the good gold grade and the long intersections in many holes. Drilling in the Gold zone also continues to hold up well. Most of these holes are outside of our current resource estimate."

Drill map and strip logs for individual holes reported here will be posted on the company website.

Widths reported are drill widths; true widths are unknown. Assays are uncut, length-weighted average values.