King County GIS Center
King Street Center
201 S. Jackson St.
Suite 706
Seattle, WA 98104

+ 47.59909 N
- 122.33136 W

+ 47°  35' 56.72"
- 122° 19' 52.90"


Catchment boundaries derived from terrain data - King County only

Description | Contacts | Attribute Information | Constraints

Data layer thumbnail image


Subject category: hydro
Title: Catchment boundaries derived from terrain data - King County only
Feature Count: 0
Feature Type: Polygon
Abstract: DRNBASIN is replaced with a higher detail TOPO_CATCHMENT. The difference between the two is DRNBASIN was digitized from existing paper maps based on USGS quad maps in the early 1990s. While the TOPO_CATCHMENT was produced using Arc/Info GRID Watershed commands on 6 foot cell GRIDS built from LIDAR ascii ground model data. Topo_Catchment is higher in accuracy then DRNBASIN
Purpose: To replace existing King County Watershed layer DRNBASIN with higher accuracy watersheds based on Lidar. Watersheds delineate areas that water collect and flow out to another waterbody, i.e. a Basin, River, Lake or Sound
Status: Complete
Updated: As needed
Time period of content: (single date,as YYYYMMDD)::
Time period of content: (date range, as YYYYMMDD):: 20050601 - 20061004
Spatial reference: WA State Plane North
FGDC Documentation: Classic or FAQ
Open Data Availability: Unknown
Place Keywords: Pacific NW, Washington state, King County, WA,
Theme Keywords: hydro, hydrology, none,
Lineage: Available
Supplemental Information: Topo_Catchment is the master layer and is dissolved to produce Topo_Basin, Topo_Watershed, and Topo_WRIA by attributes.


Maintained by:
King County Dept. of Natural Resources and Parks, Water and Lands Resources Division
Primary: Ken Rauscher, GIS Analyst, 206-296-1922
(How to e-mail a County contact)
Secondary: KCGIS Center; This mailbox is monitored during business hours.

Attribute Information

_FEATURE_ID_Unique Identification Number
Range Min:1
Range Max:1512
_SUB_BASIN_Subornate Basin of BasinUnique ID for Sub-Basins
_CATCHMENT_Smallest Basin Division in Watershed HierarchyUnique Catchment Name


Access: None

Use: King County data are made available with the understanding that they shall be used exclusively by the obtainer or his/her 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.