The Lockwood Mill Historic District, consisting of Mill Number 1, Mill Number 2, Mill Number 3, and the associated power house and canal, is the only major nineteenth century textile complex constructed in Waterville, Maine. With its prominent site on the Kennebec River adjacent to the central business district, the district is a major architectural landmark that has long been important in the economic development of the city. The complex was designed and planned by Amos D. Lockwood, nationally significant as one of the first professional consulting mill engineers.

The Old Gray House, as it has been known since 1920, is a Federal Style home located on a small point of land on the west side of Sawyer Island in the Lincoln County town of Boothbay, Maine. The rectangular house with rear ell and side porch occupies a few grassy and rocky acres facing south and west across the Sheepscot River. The first building on this property was erected by 1753 and served as a tavern and inn for over 35 years, at one point suffering a fire at the hands of the British army.

The LeRoy F. Pike Memorial Building was erected in 1925-26 and designed by the Portland firm of John Calvin Stevens and John Howard Stevens. Colonial Revival in style, the well composed frame building features classical elements applied in a manner that elevates, but does not overwhelm, the building?s massing and scale and creates a sense of austerity. The building belongs to the inhabitants of Cornish and serves as both a public auditorium and as the location of the town?s administrative offices. Since its construction, it has also been the site of its annual town meetings and elections.

The Chaloner House is a large Federal-style building situated on a rise overlooking the waterfront in the Washington County town of Lubec. Erected in stages by about 1818, the building exhibits an unusual plan featuring two primary entrances and three formal front rooms on each floor which are backed by a series of small secondary rooms under a salt-box addition.

Kings Mills is one of the three villages that comprise the Lincoln County town of Whitefield, Maine. Formed into the Town of Whitefield in 1809, each of the villages retained it separate identity, and functioned essentially as self-sufficient entities well into the 20th century. The Whitefield Union Hall, constructed in 1900, is a key element in the social history of Kings Mills.

The property on the edge of Damariscotta Lake in Nobleboro known as Chimney Farm has been immortalized beautifully in the writings of Henry Beston and Elizabeth Coatsworth Beston. Taken together their literary careers spanning over a hundred years. Their genres - children's stories, nature writing, historical fiction, poetry and local documentary - cover much ground and have garnered accolades from readers and critics of disparate voices.

Significant in the development of Maine's outdoor image were the sporting camps that catered to those who sought an authentic "wilderness experience" in the later decades of the nineteenth century. These camps, which were invariably located upon rivers and lakes or set in vast tracts of forest, helped to foster this image by developing isolated retreats that offered excellent hunting and/or fishing.

As was the custom among the Swedish immigrants to northern Aroostook County, the home that Pehr J. Jacobson erected was of log construction, and this house is one of several examples that help to illustrate the diversity of interior and exterior plan utilized by the immigrants in New Sweden and surrounding towns. Jacobson, who arrived during the initial establishment of Maine's Swedish colony in 1870, probably built his house shortly thereafter.

The former Sanford Town Hall, located in Springvale, was the second of three civic buildings built to serve as the seat of Sanford's local government. As a secondary village of the Town of Sanford, Springvale has a history that is both separated from and connected to the surrounding communities. The former Sanford Town Hall is a significant remnant of the period between the Civil War and the first World War, when Springvale's main streets were at the center of the village, both politically, socially and commercially.

Erected in 1829 by an as yet unidentified builder and altered three times within the next century, the Mercer Union Meetinghouse is a transitional Federal and Greek Revival style frame edifice that is detailed on the exterior with Gothic Revival style features and on the interior within Greek Revival mouldings and bold grain painting. It was placed in the National Register of Historic Places for its significant architecture and in recognition of the excellent decorative grain painting on the interior.