WordNet (r) 3.0 (2006):

Golconda
    n 1: a source of great wealth (especially a mine)

U.S. Gazetteer Places (2000):

Golconda, IL -- U.S. city in Illinois
   Population (2000):    726
   Housing Units (2000): 418
   Land area (2000):     0.564097 sq. miles (1.461005 sq. km)
   Water area (2000):    0.026245 sq. miles (0.067973 sq. km)
   Total area (2000):    0.590342 sq. miles (1.528978 sq. km)
   FIPS code:            30133
   Located within:       Illinois (IL), FIPS 17
   Location:             37.363844 N, 88.486792 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Golconda, IL
    Golconda