Weed maps
Click here to open King County's iMap layer for noxious weeds in a new browser window.
Zoom in to view map layers including locations of weed infestations by type,roads, streams and aerial imagery among other things. To view information about individual map features, choose the "active" (or queryable) map layer from the layers list, select the  identify tool, and click on one of that layer's features to display associated data. To search for where we have records of particular weeds, select the search tool  and type in the weed name.
2012 King County noxious weed locations
This map depicts known locations of weed infestations for regulated noxious weed species in King County based on 2012 surveys. Click map below for larger image or download full size map (file size 1.83 Mb, Adobe Acrobat format).
2009 invasive plant and noxious weed surveys in the Middle Fork and South Fork Snoqualmie River basins
 This map shows locations of invasive plants and noxious weeds identified by the Upper Snoqualmie Watershed Invasive Weed Control Project, a cooperative weed management partnership of the King County Noxious Weed Control Program, Mountains to Sound Greenway Trust, the Mt. Baker Snoqualmie National Forest and the Washington State Department of Natural Resources. Weed surveys were achieved through a combination of Noxious Weed Program staff, Greenway staff, trained Weed Watcher volunteers, and the 2009 participants of the WSU Extension Youth Environmental Leadership Institute program. Some of the widespread species were only recorded in areas where they were less abundant. Some of the species included in the survey are not on the Washington State Noxious Weed List but do appear to be invasive in this watershed. Click the map image to download the full size map (file size 1.98 Mb, Adobe Acrobat format).
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