|
| TABLE� 6A | ||||||||||||
| CONSTRUCTION SAND AND GRAVEL PRODUCTION IN THE UNITED STATES | ||||||||||||
| IN 2007, BY REGION AND SIZE OF OPERATION� | ||||||||||||
| U.S. total | ||||||||||||
| Quantity1 | ||||||||||||
| Size range | Number of� | Percentage | (thousand | Percentage | ||||||||
| (metric tons) | operations� | of total | metric tons) | of total | ||||||||
| Less than 25,000��� | 1,413 | 21.2 | 12,600 | 1.0 | ||||||||
| 25,000 to 49,999 | 956 | 14.3 | 32,400 | 2.6 | ||||||||
| 50,000 to 99,999 | 1,200 | 18.0 | 78,700 | 6.3 | ||||||||
| 100,000 to 199,999 | 1,206 | 18.1 | 157,000 | 12.7 | ||||||||
| 200,000 to 299,999 | 639 | 9.6 | 142,000 | 11.5 | ||||||||
| 300,000 to 399,999 | 361 | 5.4 | 113,000 | 9.1 | ||||||||
| 400,000 to 499,999 | 234 | 3.5 | 94,100 | 7.6 | ||||||||
| 500,000 to 599,999 | 154 | 2.3 | 76,100 | 6.1 | ||||||||
| 600,000 to 699,999 | 102 | 1.5 | 59,600 | 4.8 | ||||||||
| 700,000 to 799,999 | 77 | 1.2 | 52,300 | 4.2 | ||||||||
| 800,000 to 899,999 | 55 | 0.8 | 42,000 | 3.4 | ||||||||
| 900,000 to 999,999 | 48 | 0.7 | 41,300 | 3.3 | ||||||||
| 1,000,000 to 1,499,999 | 135 | 2.0 | 146,000 | 11.9 | ||||||||
| 1,500,000 to 1,999,999 | 42 | 0.6 | 66,000 | 5.4 | ||||||||
| 2,000,000 to 2,499,999 | 23 | 0.3 | 46,200 | 3.7 | ||||||||
| 2,500,000 and more | 23 | 0.3 | 72,800 | 5.9 | ||||||||
| Total� | 6,668 | 100 | 1,230,000 | 100 | ||||||||
| 1Data are rounded to no more than three significant digits.� | ||||||||||||
Source: United States Geological Survey Mineral Resources Program