Neutral Farm Pit, Butley

Neutral Farm Pit, Butley is a 1.1 hectare geological Site of Special Scientific Interest in Butley, east of Woodbridge in Suffolk. It is a Geological Conservation Review site, and is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.

This is described by Natural England as a classic site in the study of the Early Pleistocene in East Anglia. It was used by the nineteenth-century geologist Frederick W. Harmer to define his Butley division of the Red Crag Formation, and it has many fossils of marine molluscs.

There is access to the site from Mill Lane.