Pinecliffe, Colorado

The United States Postal Service is an independent agency of the United States government responsible for providing postal service in the United States...

Boulder County is the sixth most populous of the 64 counties of the state of Colorado of the United States. The county seat is Boulder. The most populous municipality in the county and the county seat is the City of Boulder...

Gilpin County is the second least extensive of the 64 counties of the State of Colorado of the United States. Gilpin County was named after Colonel William Gilpin, the first Governor of the Territory of Colorado. The county population was 4,757 at U.S. Census 2000. The county seat is Central City...

Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

ZIP codes are a system of postal codes used by the United States Postal Service since 1963. The term ZIP, an acronym for Zone Improvement Plan, is properly written in capital letters and was chosen to suggest that the mail travels more efficiently, and therefore more quickly, when senders use the...