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• Organization: Department of the Interior
• Updated: 20230911 | Harvested: July 16, 2025 at 08:49 AM

The Blue Ridge belt in northwestern North Carolina and northeastern Tennessee is composed chiefly of 1,000-million to 1,100-million-year-old metamorphic and plutonic rocks that have been thrust...

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• Organization: Department of the Interior
• Updated: 20200819 | Harvested: July 18, 2025 at 08:39 AM

The US Geological Survey, in cooperation with the National Park Service, mapped 35 7.5-minute quadrangles, within a 2-mile-wide+ corridor centered on the Parkway, from BLRI (Blue Ridge Parkway)...

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• Organization: Department of the Interior
• Updated: 20241216 | Harvested: September 14, 2025 at 08:40 PM

This data release contains three tables of U-Pb zircon isotopic data generated from analyses of 40 metaplutonic and metavolcanic rocks from the Yukon-Tanana Upland of western Yukon and...

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• Organization: Department of the Interior
• Updated: 20220316 | Harvested: July 16, 2025 at 10:33 AM

The 1:100,000-scale geologic map of the South Boston 30' x 60' quadrangle, Virginia and North Carolina, provides geologic information for the Piedmont along the I-85 and U.S. Route 58 corridors...

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• Organization: Department of the Interior
• Updated: 20220829 | Harvested: July 18, 2025 at 05:06 AM

This 1:50,000-scale geologic map represents a compilation of the most recent geologic studies of the upper Arkansas River valley, between Leadville and Salida, Colorado. The valley is structurally...

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