Archaeologists are social scientists who do excavations to recover study and preserve such artefacts as ancient ruins, tools and ceramics

They may work for archaeological firms, museums, historic site preservation organizations or government agencies.
As you have asked about the top archaeology colleges in USA, I am giving you some information about it
Yale University
New Haven, Connecticut

Stanford University
Stanford, California

University of Pennsylvania
Philadelphia, Pennsylvania

Brown University
Providence, Rhode Island

Cornell University
Ithaca, New York

Johns Hopkins University
Baltimore, Maryland

Washington University in St Louis
Saint Louis, Missouri

Haverford College
Haverford, Pennsylvania

University of California-Los Angeles
Los Angeles, California

Carleton College
Northfield, Minnesota

Tufts University
Medford, Massachusetts

Hamilton College
Clinton, New York

University of Southern California
Los Angeles, California

University of North Carolina at Chapel Hill
Chapel Hill, North Carolina

Oberlin College
Oberlin, Ohio

Boston University
Boston, Massachusetts

The University of Texas at Austin
Austin, Texas