Discusses the use of a non-destructive geophysical method for locating buried features at an open site at Bunda Lake, in western New South Wales. A cesium vapor magnetometer survey was undertaken to attempt to solve problems of artifact association, site boundaries, and site chronology. The survey was directed towards locating magnetic anomalies believed to be associated with aboriginal fireplaces. The technique is a potentially rapid, nondestructive method for locating buried features across uneroded areas suspected of containing aboriginal materials. -- AATA