Bulletin 118
Groundwater Information Center Groundwater Basin Maps and Descriptions Hydrologic Regions of California: North LahontanBasins and Subbasins of the North Lahontan Hydrologic Region
To access only the basin and subbasin descriptions for this Hydrologic Region, click on the individual basin/subbasin number below. To view a map of basin and subbasin boundaries and download individual or all basin and subbasin descriptions for this Hydrologic Region, go to DWR's Integrated Water Resources Information System (IWRIS) web site. IWRIS is a GIS-based web application that allows the user to access, query, integrate, and visualize different sets of data. For the instructions on how to view groundwater basin and subbasin maps, and download basin and subbasin descriptions, click on the How do I use IWRIS? link.
Basin/subbasin Basin name
6-1 Surprise Valley
6-2 Madeline Plains
6-3 Willow Creek Valley
6-4 Honey Lake Valley
6-5 Tahoe Valley
6-5.01 Tahoe Valley South
6-5.02 Tahoe Valley West
6-5.03 Tahoe Valley North
6-6 Carson Valley
6-7 Antelope Valley
6-8 Bridgeport Valley
6-67 Martis (Truckee) Valley
6-91 Cow Head Lake Valley
6-92 Pine Creek Valley
6-93 Harvey Valley
6-94 Grasshopper Valley
6-95 Dry Valley
6-96 Eagle Lake Area
6-97 Horse Lake Valley
6-98 Tuledad Canyon
6-99 Painters Flat
6-100 Secret Valley
6-101 Bull Flat
6-104 Long Valley
6-105 Slinkard Valley
6-106 Little Antelope Valley
6-107 Sweetwater Flat
6-108 Olympic Valley
North Lahontan Hydrologic Region Map
If posted PDF files are not in an accessible text based format, please request an accessible version via the Comments and Suggestion page.
If you still need assistance, contact the DWR Webmaster.