At the base of the Littleton in the Alton quad, southeastern NH, is a thin, coarse-grained grit or conglomerate with gray and rusty-weathering lithic fragments of the Smalls Falls Formation, informally named the Wild Goose Grits by Eusden and others (1987). Unit represents a basal Littleton transgressive deposit on a disconformity. Littleton may have been 2.5 km thick in this area before erosion. The Wild Goose Grits are 100 to 300 m thick. Early Devonian Littleton is top of known Paleozoic sequence. Overlies Madrid Formation.
Source: GNU records (USGS DDS-6; Reston GNULEX).
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