This report for Glen Haven consists of four parts: site history, existing conditions, analysis, and treatment guidelines. The site history and existing conditions sections document in narrative and graphic form the physical evolution of the landscape from the mid-nineteenth century to the present. The analysis section provides a concise discussion of the property's historic significance according to the National Register criteria, and an evaluation of the landscape characteristics and associated features that contribute to that significance. The analysis incorporates concepts from National Register Bulletin 30: Guidelines for Evaluating and Documenting Rural Historic Landscapes. All preservation, restoration, rehabilitation, or reconstruction treatment recommendations conform to the Secretary of the Interior's Standards for Historic Preservation, and the Guidelines for the Treatment of Historic Landscapes.