Digital database of the previously published bedrock geologic map showing thickness of overlying Quaternary deposits, Grand Island quadrangle, Nebraska and Kansas

This digital data release contains geospatial data for the 1:250,000 scale geologic map of the Grand Island 1 degree by 2 degree quadrangle, Nebraska, originally...本次数字数据发布包含内布拉斯加州格兰德艾兰1°×2°标准图幅1:250000比例尺地质图对应的地理空间数据，原……