'Sierra County, NM' definitions:

Sierra -- U.S. County in New Mexico

From: Gazetteer 2000
Name :
Sierra -- U.S. County in New Mexico
Population (2000) :
13270
Housing Units (2000) :
8727
Land area (2000) :
4180.232226 sq. miles (10826.751302 sq. km)
Water area (2000) :
56.070649 sq. miles (145.222307 sq. km)
Total area (2000) :
4236.302875 sq. miles (10971.973609 sq. km)
Located within :
New Mexico (NM), FIPS 35
Location :
33.095349 N, 107.291198 W