Perennial performs and manages cultural resource investigations and consultations for compliance with the Historic Preservation Act along with any tribal, state, or local requirements.

Our project expertise includes but is not limited to the preparation and coordination of the following:

·        Phase I Reconnaissance and Intensive Surveys 

·        Phase II Studies                                                           

·        Phase III Mitigation and Recovery                               

·        National Register Historic Nominations            

·        Geomorphological Studies                                           

·        Historical Architectural Surveys