The Collaborative International Dictionary of English v.0.48:

Dugway \Dug"way`\, n.
   A way or road dug through a hill, or sunk below the surface
   of the land. [U.S.]
   [1913 Webster]

U.S. Gazetteer Places (2000):

Dugway, UT -- U.S. Census Designated Place in Utah
   Population (2000):    2016
   Housing Units (2000): 572
   Land area (2000):     5.204458 sq. miles (13.479485 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    5.204458 sq. miles (13.479485 sq. km)
   FIPS code:            20450
   Located within:       Utah (UT), FIPS 49
   Location:             40.231175 N, 112.751309 W
   ZIP Codes (1990):     84022
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Dugway, UT
    Dugway