$4,854,704 $4,588,873 Sand and gravel, petroleum, natural gas, lime, gold,
stone, silver. 
Sand and gravel, peat. 
Sand and gravel, petroleum, stone. 
Do. 
Natural gas, petroleum, sand and gravel, stone. Sand and gravel, natural
gas, petroleum, clays. Sand and gravel, fluorspar, stone, lime, peat, gold,

clays, tungsten concentrate, petroleum, silver, lead, 
copper. 
Stone, sand and gravel, gypsum, peat, gold, silver. Stone, sand and gravel.

Molybdenum, sand and gravel, lead, silver, gold, zinc, copper, stone, mica.

Sand and gravel, silver, gold. 
Pumice, sand and gravel. 
Sand and gravel. 
Sand and gravel, perlite, stone, clays. 
Coal, sand and gravel, lime, stone. 
Zinc, lead, stone, sand and gravel, silver, copper, gold, pyrites. 
Sand and gravel, clays, stone. 
Zinc, sand and gravel, lead, silver, copper, stone, gold, 
pumice. 
Sand and gravel, clays, stone. Sand and gravel, stone, lime, clays. 
Cement, stone, coal, gypsum, sand and gravel, clays, petroleum, uranium,
feldspar, lead, copper, silver, 
zinc, beryllium concentrate, gold. 
Vanadium, uranium, sand and gravel, lime, stone, 
natural gas, coal, petroleum. 
Sand and gravel, peat, gold, zinc, lead, copper, silver. Sand and gravel,
stone. 
Coal, zinc, lead, silver, sand and gravel, stone, copper, gold, manganese
ore. 
Lead, zinc, silver, sand and gravel, copper, gold. 
Sand and gravel, coal, clays, stone, copper, silver. 
Petroleum, natural gas, sand and gravel. 
Uranium, sand and gravel, clays, stone, gold, silver. 
Petroleum, natural gas, sand and gravel, natural gas liquids. 
Sand and gravel, stone. 
Molybdenum, tungsten concentrate, sand and gravel, 
stone, pyrites, tin, rare-earth metal concentrate, 
peat. 
Natural gas, natural gas liquids, sand and gravel, coal, 
petroleum, stone, peat, gold, silver. 
Cement, stone, petroleum, sand and gravel, lime, 
natural gas liquids, natural gas, gypsum, beryllium 
concentrate. 
Coal, sand and gravel, clays, stone. 
Sand and gravel, stone. 
Petroleum, natural gas liquids, natural gas, sand and gravel, lime. 
Uranium, vanadium, natural gas, coal, sand and 
gravel, natural gas liquids, stone. 
Zinc, lead, copper, silver, gold. 
Petroleum, natural gas, coal, sand and gravel, natural 
gas liquids, gold, silver. 
Petroleum, natural gas, sand and gravel, carbon 
dioxide, stone. 
Uranium, vanadium, sand and gravel, coal, salt, stone. 
Petroleum, natural gas liquids, natural gas, sand and 
gravel, lime, stone. 
Lime, sand and gravel, stone. 
Zinc, lead, copper, silver, gold, sand and gravel. 
Peat, sand and gravel, gold, stone, silver, lead. 
Sand and gravel, stone. 
Coal, iron ore, natural gas, sand and gravel, stone, silver, lead, zinc,
copper, gold. 
Sand and gravel, petroleum, stone. 
Sand and gravel, lime, clays, zinc, lead, silver, stone, 
copper, gold. 
Petroleum, natural gas, natural gas liquids, uranium, 
vanadium, coal, sand and gravel, stone. 
Sand and gravel. 
Coal, petroleum, sand and gravel, stone, pumice. 
Sand and gravel, copper. 
Zinc, lead, silver, copper, gold, sand and gravel. 
720,791 
1,972 
w 
47,347 
104,518 
10,000 
123,487 
2,961,354 
w 
901,560 
8,475,518 
 
302,974 
2,015,583 
10,238,529 
 
 
3,956,822 
 
33,355 
237,532 
4,388,483 
 
81,862 
711,206 
712,000 
w 
2,759,000 
 
62,212 
86,365,332 
 
 
7,905,197 
 
11,335,187 
 
 
4,981,941 
71,150 
10,176,000 
 
10,187,605 
 
1,373,750 
 
9,061,406 
 
2,066,671 
 
13,853,623 
7,995,400 
 
447,407 
w 
115,400 
55,274 
6,201,963 
 
251,687 
 
1,967,250 
 
60,366,541 
 
185,000 
6,608,997 
209,491 
4,679,184 
See footnotes at end of table. 182                  MINERALS YEARBOOK, 1967

  Table 2.—Value of mineral production in Colorado, by counties l 
 
County 1966 1967 Minerals produced in 1967 in order of value 
 
Adams 
Alamosa 332,791 173,062 
Arapahoe 1,158,554 1,914,133 
Archuleta 240,500 565,242 
Baca 1,252,601 1,258,312 
Bent ' 72,714 99,868 
Boulder ' 2,273,345 2,625,664 
Chaffee 812,439 
Cheyenne 126,572 
Clear Creek 668,566 
Conejos 37,929 
Costilla 116,578 
Crowley 63,948 
Custer ' 91,187 
Delta 2,248,247 
Dolores 872,585 
Douglas 970,209 
Eagle_ 10,269,058 
Elbert 114,862 
El Paso 2,412,395 
Fremont ' 10,761,297 
Garfield r 3,546,331 
Gilpin 10,695 
Grand 312,302 
Gunnison 4,752,730 
Hinsdale 32,752 
Huerfano 271,926 
Jackson 892,000 
Jefferson ' 4,042,457 
Kiowa 1,034,000 
Kit Carson 473,297 
Lake 92,932,806 
LaPlata..__~ ' 9,534,297 
Larimer ' 10,265,968 
Las Animas 5,571,654 
Lincoln 168,051 
Logan 11,985,129 
Mesa_ ' 10,635,594 
Mineral 1,449,094 
Moffat 6,281,631 
Montezuma ' 3,145;506 
Montrose ' 17,108,436 
Morgan 7,222,788 
Otero 445,256 
Ouray 2,287,982 
Park ' 203,242 
Phillips 162,000 
Pitkin 10,954,847 
Prowers 184,562 
Pueblo... ' 3,302,109 
Rio Blanco ' 60,620,930 
Rio Grande 70,000 
Routt 5,627,187 
Saguache ' 123,240 
San Juan ' 4,554,820