USGS Quadrangle Boundaries and Corner Points [Illinois]
Illinois Geospatial Data Clearinghouse
Full Details
- Title
- USGS Quadrangle Boundaries and Corner Points [Illinois]
- Description
- Point, line, and polygon data that describe ideal USGS quadrangle boundaries and cornor points for quadrangles that intersect the state of Illinois. ISGS, 1992 (revised 1998). Includes line and polygon feature classes for each of the following scales/extents:
3.75-minute x 3.75-minute, commonly called quarter-quadrangles, typically used for a 1:12,000-scale index,
7.5-minute x 7.5-minute, the common USGS topographic sheet extent, typically 1:24,000-scale in Illinois,
15-minute x 15-minute, typically used for 1:62,500-scale index,
30-minute x 1 degree, typically used for 1:100,000-scale index,
1-degree x 2-degree, typically used for 1:250,000-scale index.
- Access Rights
- Public
- Format
- File
- Language
- English
- Date Added
- October 21, 2023
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