Found 3 datasets matching "250k".
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QUADS250_POLY: 1:250,000 quadrangles for Oregon and Washington as defined in North American Datum 1927 (NAD27). These quads show the approximate extent of and align with the NAD27 corner ticks as...
Search relevance: 73.58 | Views last month: 1 -
The downloadable ZIP file contains a georeferenced TIF. This data set is a mosaic of 24 individual DRGs georeferenced to the IDTM83 grid. The original Digital Raster Graphic (DRG) is a raster...
Search relevance: 34.48 | Views last month: 1 -
The Geographic Information Retrieval and Analysis System (GIRAS) was developed in the mid 70s to put into digital form a number of data layers which were of interest to the USGS. One of these data...
Search relevance: 28.44 | Views last month: 2
