The Greenhorns Agrarian Library is a membership-based research library. The collection centers and archives agrarian material culture, and includes books from many disciplines.

The library is housed in a historic Odd Fellows Hall constructed in 1896 once listed as critically endangered by Maine Preservation. In 2017, farm activist Severine von Tscharner Fleming purchased the building to continue her work with Greenhorns, a grassroots organization that supports young farmers.

The building has been renamed Reversing Hall, in honor of the tidal falls at the end of the peninsula. Today, the Greenhorns Agrarian Library contains approximately 9,000 volumes. The project aims to enable historical exploration and contemporary cultural production. As such, the library safeguards agricultural materials and provides tools for land-based and self-directed learning. As a system for circulating materials—books, ideas, conversations, and projects—the library provides the opportunity for unconventional learning paths.