Alluvial and Glacial Aquifers

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set represents the extent of the alluvial and glacial aquifers north of the southern-most line of glaciation. Aquifers are shown in the States of Maine, Vermont, New Hampshire, Connecticut, Massachusetts, Rhode Island, New Jersey, New York, Pennsylvania, Ohio, Indiana, Michigan, Wisconsin, Illinois, Minnesota, Iowa, Missouri, Kansas, Nebraska, South Dakota, North Dakota, and Montana. These data delineate the areal extent of the alluvial and [...]

本数据集发布于2016年10月1日美国地质调查局（USGS）科学数据审核、批准与发布政策生效日期之前，该政策详见《USGS调查手册》第502.8章《基础科学实践：科学数据发布的审核与批准》。本数据集划定了冰川作用最南界以北的冲积含水层与冰川含水层的分布范围。上述含水层覆盖缅因州、佛蒙特州、新罕布什尔州、康涅狄格州、马萨诸塞州、罗德岛州、新泽西州、纽约州、宾夕法尼亚州、俄亥俄州、印第安纳州、密歇根州、威斯康星州、伊利诺伊州、明尼苏达州、艾奥瓦州、密苏里州、堪萨斯州、内布拉斯加州、南达科他州、北达科他州及蒙大拿州。本数据集明确了冲积及[...]的平面分布范围。