(Thousand dollars) 
 P Preliminary.Source: Bureau of Mines; U.S. Department of Labor, Department
of Employment Security; U.S. Departmentof Commerce; F.W. Dodge Division,
McGraw-Hill Information Systems Company.392 
MINERALS YEARBOOK, 1967 
 
 
Table 2.—Value of mineral production in Maryland, by counties 1 
 
County 
1966 
1967 
Minerals produced in 1967 in order of value 
Allegany                    
Anne Arundel                
Baltimore                   
Calvert                     
Caroline                    
Carroll..                     
Cecil                       
Charles                     
Dorchester                  
Frederick                   
Garrett                     
Harford                    
Howard                    
$2,663 
3,131 
13,628 
 W 
 W 
 W 
3,894 
 W 
 W 
7,058 
4,002 
1,763 
 W 
$2,659 
2,653 
14,035 
 W 
 W 
 W 
3,689 
 W 
 W 
7,986 
3,761 
1,670 
 W 
Coal, sand and gravel, stone, clays. 
Sand and gravel. 
Stone, sand and gravel, clays. 
Greensand marl, sand and gravel. 
Sand and gravel. 
Cement, stone, clays, soapstone. 
Stone, sand and gravel. 
Sandandgravel. 
Sand and gravel, stone. 
Cement, stone, lime, clays, sand and gravel. 
Coal, natural gas, stone, sand and gravel, peat. 
Stone, sand and gravel, clays, talc. 
Stone. 
Kent                       
W 
W 
Peat, clays. 
Montgomery                 
Prince Georges               
St. Marys                   
Talbot                     
Washington                  
Wicomico                   
Worcester                   
 W 
8,202 
 W 
 W 
 W 
 W 
 W 
 W 
7,599 
 W 
 W 
 W 
 W 
 W 
Stone. 
Sand and gravel, clays. 
Sand and gravel. Do. 
Cement, stone, clays, potassium salts. Sandandgravel. 
 Do. 
Undistributed 2                       
29,820 
28,769 
 
Total3                
74,161 
72,819 
 
 W Withheld to avoid disclosing individual company confidential data. 
 1 Queen Annes and Somerset Counties are not listed because no production
was reported. 
 2 Includes some sand and gravel that cannot be assigned to specific counties
(1967), gem stones, and values indicated by symbol W. 
 3 Data may not add to totals shown because of independent rounding. 
 
Table 3.—Indicators of Maryland business activity 
 
 
1966 
1967 P 
Change, 
percent 
Personal income: 
 
 
 
 Total millions~ 
 Percapita                                       Construction activity: 
 Constructioncontracts thousands 
      Nonresidential buildings do~.      Residential buildings do~      Nonbuildingconstruction
do~ 
Cement shipments to and within Maryland 
 thousand 376-pound barrels -Mineralproduction thousands 
Civilianworkforce tbousands~ 
$11,537 
$3,20& 
 
$1,163,756 
$402,804 
$579,100 
$181,852 
 
6,885 
$74,161 
1,406.3 
$12,644 
$3,434 
 
$1,137,726 
$407,513 
$435,846 
$294,367 
 
6,720 
$72,819 
1,448.3 
+9.6 
+7.2 
 
—2.2 +1.2 
—24.7 +61.9 
 
—2.4 
—1.8 +3.0 
Total civilian employment do~ 
Unemployment (percent of work force) seasonal adjusted 
Contract construction employees, thousands - 
Manufacturing: do. 
1,365.9 
3.3 
82.7 
282.2 
1,410.1 
3.7 
81.7 
280.3 
+3.2 
+ 12.1 
—1.2 
— .7 
 Durable goods do. Nondurable goods do~ 
Nonmanufacturing do~Mining. do 
157.6 
124.6 
855.0 
2.5 
156.0 
124.3 
901.0 
2.5 
—1.0 
—.2 
-f-5.4