Web services > LiDAR > Washington (State)--King County > 2025-present

IDXP7500 - 7500-ft Tiling Index for King County Raster Data [Washington (State)--King County]

King County · 2025 Full Details

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Full Details

Title
IDXP7500 - 7500-ft Tiling Index for King County Raster Data [Washington (State)--King County]
Description
For more information about this layer please see the GIS Data Catalog . A spatial tiling index designed for storage of file-based image and other raster (i.e., LiDAR elevation, landcover) data sets. A regular grid with origin at 0,0 of the Washington North State Plane Coordinate System, with grid cells defined by orthogonal bounds 7500 feet long in easting and in northing. Only those cells currently involved in one of several image/raster data projects for King County and southwestern Snohomish County are labelled, though the labeling scheme can be extended. The name of the spatial index is derived from the acronym (I)n(D)e(X) (P)olygons at the (7500) foot tile level, or idxp7500. Cell label is a row-id cocantenated with a column-id generating a four-character identifier that uniquely identifies every cell. The row portion of the identifier is a two-character alpha code of the format aa, ab, ac.... ba, bb, etc. and the column portion is a two-digit integer value such as 01, 02, 03.... 11,12,13, etc. A composite cell identifier would be then, for example, aa01, aa02, .....ba11,ba12, etc. Not all image and raster data is stored at the tiling level represented by this index. Data is stored at this level if full-resolution, uncompressed data would generate larger than manageable file sizes at a larger tile size.
Creator
King County
Temporal Coverage
Last Modified: 2025-07-31
Date Issued
2025-07-31
Rights
King County data are made available with the understanding that they shall be used exclusively by the obtainer or their authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County.
Access Rights
Public
Format
ArcGIS FeatureLayer
Language
English
Date Added
December 15, 2025

Links

Cite and Reference

  • Citation
    King County (2025). IDXP7500 - 7500-ft Tiling Index for King County Raster Data [Washington (State)--King County]. . https://gis-kingcounty.opendata.arcgis.com/datasets/kingcounty::idxp7500-7500-ft-tiling-index-for-king-county-raster-data (web service)
  • BTAA Geoportal Link

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