The Collaborative International Dictionary of English v.0.48:

crow's-nest \crow's"-nest`\, crow's nest \crow's"
nest`\(kr[=o]z"n[e^]st`), n. (Naut.)
   A box or platform near the top of a mast, esp. in whalers, to
   shelter the man on the lookout.
   [1913 Webster]

U.S. Gazetteer Places (2000):

Crows Nest, IN -- U.S. town in Indiana
   Population (2000):    96
   Housing Units (2000): 41
   Land area (2000):     0.446133 sq. miles (1.155479 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.446133 sq. miles (1.155479 sq. km)
   FIPS code:            16156
   Located within:       Indiana (IN), FIPS 18
   Location:             39.852208 N, 86.172811 W
   ZIP Codes (1990):
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Crows Nest, IN
    Crows Nest