What is "kittitas"

Population (2000): 1105
Housing Units (2000): 510
Land area (2000): 0.609245 sq. miles (1.577936 sq. km)
Water area (2000): 0.000000 sq. miles (0.000000 sq. km)
Total area (2000): 0.609245 sq. miles (1.577936 sq. km)
FIPS code: 36045
Located within: Washington (WA), FIPS 53
Location: 46.983821 N, 120.418284 W
ZIP Codes (1990):
Note: some ZIP codes may be omitted esp. for suburbs.
Headwords:

Population (2000): 33362
Housing Units (2000): 16475
Land area (2000): 2297.186473 sq. miles (5949.685399 sq. km)
Water area (2000): 35.926462 sq. miles (93.049106 sq. km)
Total area (2000): 2333.112935 sq. miles (6042.734505 sq. km)
Located within: Washington (WA), FIPS 53
Location: 47.103259 N, 120.706571 W
Headwords: