Pg. 25. Mayflower Hill formation. [Rank terms not capitalized, however units are considered formal.] May be equivalent to Patch Mountain formation [new]. Age is Silurian.
Name credited to P.H. Osberg (in prep.) [see Osberg, 1968, Maine Geol. Survey Bull., no. 20].

Source: US geologic names lexicon (USGS Bull. 1350, p. 478).

Pg. 73. Mayflower Hill Formation. In vicinity of York Beach, Maine, three distinct groups of rocks recognized. They include Agamenticus Complex, Cape Neddick Complex, and basic dikes. All are intruded into Kittery Formation of Silurian age and correlated with Mayflower Hill Formation, of Waterville area, containing fossils of Llandovery age.

Source: US geologic names lexicon (USGS Bull. 1350, p. 478).

Mayflower Hill Formation. Includes some of the rocks previously mapped as Waterville Slate by Perkins and Smith (1925). Consists of thick beds of light-bluish-gray to gray, coarse-grained metasandstone at base grading to metashale at top; some beds slightly calcareous. Thickness probably exceeds 1,000 feet (300 m), but base of unit is not exposed. Age is Early Silurian, based on presence of late Llandoverian monograptids.
Type locality: Mayflower Hill, just south of Colby College campus, Waterville, Kennebec Co., central ME. Good exposures seen at quarry 1.1 miles (1.8 km) 0 degrees from Colby College, on campus of the college, and 1.3 miles (2.1 km) 97 degrees from Oakland.

Source: Modified from GNU records (USGS DDS-6; Reston GNULEX).

Lower part of Sangerville Formation replaces rocks called Mayflower Hill in previous reports.

Source: GNU records (USGS DDS-6; Reston GNULEX).