TY - RPRT TI - Surficial geologic map of the Mount Grace-Ashburnham-Monson-Webster 24-quadrangle area in central Massachusetts AU - Janet Radway Stone PY - 2013 DO - 10.3133/ofr20061260i UR - https://pubs.usgs.gov/publication/ofr20061260I ID - ofr20061260I ER -