Judy Fierstein and Wes Hildreth at South Sister volcano, Oregon, 2009

Wes Hildreth and Judy Fierstein, seen here in 2009 on the east shore of Sparks Lake near Oregon's South Sister volcano, were longtime field and research partners Their work showed how mapping and understanding geologic field relationships provide an unequaled framework for interpretation of laboratory-generated data; and how well-honed curiosity, acute observations, and willingness to do the hard work combine to build world-class scientific contributions.