USGS 1:6000 (Quarter-Quarter 7 1/2 Minute) Quadrangle Index

This is a mathematically generated grid in which each polygon represents one quarter of the already quartered 225 second (or 3 3/4 minute) data resource, or a quarter-quarter of a standard USGS 7 1/2 minute quadrangle. The result is a 1 7/8 minute quadrangle layer which nests within the standard USGS quads and whose tile naming scheme includes reference to the parent quadrangles. Known as the "Quarter-Quarter Quad" tile index.

Additional Info

Field Value
dsAccessConst None
dsCurrentRef Processing occurred in 2001.
dsModifiedDate 2022-09-02 00:31:09
dsOriginator Minnesota Department of Natural Resources (DNR)
dsPurpose To provide a standard framework for accessing and creating data sets tiled by "quarter-quarter-quad." Especially for use with collecting, organizing, and distributing LiDAR data and derived products.
gdrsDsGuid {682cc5af-76af-4305-842f-5ac733585a35}
spatial {"type":"Polygon","coordinates":[[[-96.908924, 43.308126],[-96.908924, 49.461375], [-89.259327, 49.461375], [-89.259327, 43.308126], [-96.908924, 43.308126]]]}

Dataset extent

Tiles © Esri — Esri, DeLorme, NAVTEQ, TomTom, Intermap, iPC, USGS, FAO, NPS, NRCAN, GeoBase, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), and the GIS User Community