1997 Economic Census:
Mining
Maryland
 
Mining by Subsector
Includes only establishments with payroll. Introductory text includes scope and methodology. For descriptions of column headings and rows (industries), click on the appropriate underlined element in the table.
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data		 NAICS
code		 Description Estab-
lish-
ments		 Value of
Shipments
($1,000)		 Annual
payroll
($1,000)		 Paid
employees
  21 Mining 93 351,407 64,402 1,771
212 Mining (except oil & gas) 81 348,729 63,888 1,730

 

 

Mining by Industry
Includes only establishments with payroll. Introductory text includes scope and methodology. For descriptions of column headings and rows (industries), click on the appropriate underlined element in the table.
NAICS
code		 Description Estab-
lish-
ments		 Value of
Shipments
($1,000)		 Annual
payroll
($1,000)		 Paid
employees
21 Mining 93 351,407 64,402 1,771
212 Mining (except oil & gas) 81 348,729 63,888 1,730
2121 Coal mining 13 100,569 19,044 454
212111 Bituminous coal & lignite surface mining 12 D D (100-249)
212112 Bituminous coal underground mining 1 D D (250-499)
2123 Nonmetallic mineral mining & quarrying 68 248,160 44,844 1,276
21231 Stone mining & quarrying 31 167,186 26,961 727
212312 Crushed & broken limestone mining & quarrying 11 87,666 13,425 365
212313 Crushed & broken granite mining & quarrying 3 26,722 4,421 107
212319 Other crushed & broken stone mining & quarrying 12 50,432 8,355 217
21232 Sand, gravel, clay, ceramic & refractory minerals mng & quarrying 36 D D (500-999)
212321 Construction sand & gravel mining 34 D D (250-499)
D = Withheld to avoid disclosure; N = Not available

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Source: 1997 Economic Census

Last modified: 9/18/00   Questions?