|
| TABLE 8 | ||||||||
| EXPLORATION ACTIVITY IN THE UNITED STATES IN 2006, BY METHOD, COMMODITY, AND STATE1 | ||||||||
| (Meters) | ||||||||
| Rotary and | Percussion | |||||||
| Churn and | reverse | drilling, other | ||||||
| diamond | circulation | drilling, and | ||||||
| Commodity or State | drilling | drilling | trenching | Grand total | ||||
| Commodity: | ||||||||
| Gold | 242,000 | 679,000 | W | 922,000 | ||||
| Silver | 1,590 | -- | -- | 1,590 | ||||
| Other2 | 42,900 | 86,900 | 251,000 | 380,000 | ||||
| � Total | 287,000 | 766,000 | 251,000 | 1,300,000 | ||||
| � Percentage of grand total | 22 | 59 | 19 | 100 | ||||
| State: | ||||||||
| Alaska | 2,700 | 9,200 | W | 11,900 | ||||
| Montana | 1,590 | -- | -- | 1,590 | ||||
| Nebraska | -- | 75,800 | -- | 75,800 | ||||
| Nevada | 234,000 | 670,000 | W | 904,000 | ||||
| New York | 4,110 | -- | -- | 4,110 | ||||
| Undistributed3 | 44,800 | 11,300 | 251,000 | 307,000 | ||||
| Total | 287,000 | 766,000 | 251,000 | 1,300,000 | ||||
| W Withheld to avoid disclosing company proprietary data; included with "Other" or "Undistributed."� -- Zero. | ||||||||
| 1Data are rounded to no more than three significant digits; may not add to totals shown. | ||||||||
| 2Includes cobalt, copper, iron ore, lead, lead-zinc, uranium, zinc, and commodity indicated by symbol W. | ||||||||
| 3Includes Arizona, California, Colorado, Idaho, Minnesota, Missouri, Tennessee, Wyoming, and States indicated by symbol W.�� | ||||||||
Source: United States Geological Survey Mineral Resources Program