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Geoscientific collections managed by Maine Geological Survey are aggregated in the National Digital Catalog to enhance discovery and use of valuable samples and data for further scientific research. Contact information and material access instructions are provided for the individual collections.
Collection includes cores extracted over decades by mineral exploration firms as they completed their Maine work or otherwise released their data, covering both public and private lands that were the subject of mineral exploration. These records represent the best public collection of the major mineral exploration efforts of the 1960s-1980s. This collection of 595 scanned core records is accessible through a Google Earth application. Please contact the Maine Geological Survey to discuss access to the collection.
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Provide access to digital versions of historical mining and mineral exploration claims maps and documents.
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Dataset contains point data describing the results of 1-channel and 12-channel seismic refraction studies mapped at a scale of 1:24,000, from the Maine Geological Survey. The results include the depth to the water and depth to the bedrock. Links are also provided, when available, to the profile graphs for the seismic line.
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Set of scanned documents of progress files on unpublished geologic mapping projects.
These web map applications make available the georeferenced digital images of the bedrock and surficial quadrangle maps published by the Maine Geological Survey at the 1:24,000, 1:62,500, 1:100,000, 1:250,000 and 1:500,000 scales.
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This web map application makes available the georeferenced digital images of the significant sand and gravel aquifer quadrangle maps published by the Maine Geological Survey at the 1:24,000 scale. It also shows the seismic line profile graph locations.
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Provide access to Maine Core Repository inventory records maintained by the Maine Geological Survey. Maps, drill logs, spatial locations and inventory locations of the core boxes are included in the data.
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This web map application makes available the georeferenced digital image of the Surficial Geologic Map of Maine published by the Maine Geological Survey at the 1:500,000 scale.
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The Critical Minerals project in Maine produced a database of published and unpublished sources of information that describe important undiscovered potential mineral resources in the state. Information on focus areas for exploration is also included. Materials provided upon request.
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This is a collection of all the spatial datasets that were used to capture the features in the digitization of the surficial quadrangle maps published by the Maine Geological Survey at the 1:250,000 scale.
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This web map application makes available the georeferenced digital images of the surficial quadrangle maps published by the Maine Geological Survey at the 1:250,000 scale.
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This web map application makes available the georeferenced digital images of the surficial quadrangle maps published by the Maine Geological Survey at the 1:62,500 scale.


    map background search result map search result map Maine Geological Survey Collection of Maine Web Map Applications and Datasets Maine Surficial Geology (1:62,500) Web Map Application Maine Surficial Geology (1:500,000) Web Map Application Maine Surficial Geology (1:250,000) Web Map Application Maine Surficial Geology (1:250,000) Spatial Dataset Services Maine Significant Sand and Gravel Aquifer (1:24,000) Web Map Application Maine Seismic Refraction Profiles ArcGIS Online Feature Layer Maine Core Repository Maine Geological Survey Progress Files Maine Geological Survey Field Photos Collection Maine Geological Survey Field Photos - Dr. Joseph T. Kelley Collection Maine Geological Survey Critical Minerals Project Maine Geological Survey Mining Claims Maps and Documents Maine Surficial Geology (1:62,500) Web Map Application Maine Surficial Geology (1:500,000) Web Map Application Maine Surficial Geology (1:250,000) Web Map Application Maine Surficial Geology (1:250,000) Spatial Dataset Services Maine Significant Sand and Gravel Aquifer (1:24,000) Web Map Application Maine Seismic Refraction Profiles ArcGIS Online Feature Layer Maine Core Repository Maine Geological Survey Progress Files Maine Geological Survey Field Photos Collection Maine Geological Survey Field Photos - Dr. Joseph T. Kelley Collection Maine Geological Survey Critical Minerals Project Maine Geological Survey Mining Claims Maps and Documents Maine Geological Survey