Results: 1 - 4 of 4
Dec 31, 1973
Earth Sciences Report
… by glacial materials, mainly till and clay and silt. Buried … Groundwaters in areas covered by till, and clay and silt are … in contrast to areas of till, and silt and clay in similar …
Dec 31, 1972
Earth Sciences Report
… by approximately 100 feet of till. The rise of the level of the … but supplied by leakage from the till or bedrock or both; it is …
Dec 31, 1971
Earth Sciences Report
Dec 31, 1971
Earth Sciences Report