How can we trust Augusta's Numbers?

Drill samples go from 1.32/1.57 to 0.45 and 0.17 in a five years??

2006  'Augusta Intercepts 140m of 1.32% Copper, 1.57% Copper Equivalent, at Rosemont'

VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - June 19, 2006) - Augusta Resource Corporation (TSX VENTURE:ARS) ("Augusta" or the "Company") is pleased to announce initial drill results from 3 holes of the current 30 hole 20,000 metre program at the Rosemont Copper Molybdenum Proj...7/19/2006 10:34:00 AM

2011 "Overview: Arizona's next major copper mine"

Excerpt: In addition to copper, Rosemont is expected to produce significant amounts of silver and molybdenum over its 20+ year mine life. As of January 2009, Rosemont has proven and probable mineral reserves containing 546 million tons grading 0.45% copper, 0.015%molybdenum and 0.12 ounces per ton silver in sulphide ore, and an additional 70 million tons at 0.17% copper in oxide ore. Production is projected to commence in 2015.