TY - RPRT TI - Use of multi-offset borehole-radar reflection method in fractured crystalline bedrock at Mirror Lake, Grafton County, New Hampshire AU - John W. Lane AU - F.P. Haeni AU - Roelof J. Versteeg PY - 1998 UR - https://pubs.usgs.gov/publication/70206374 ID - 70206374 ER -