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Flag of United States Part of United States mapping project.

Document imports in California here. Imports should be added to the related pages too. Links are included at the bottom.

Ongoing Imports

California Land Cover - Turning the state green

California Farms - Turning the state brown

National Hydrography Dataset - Part of the nationwide import for streams, rivers and water

San Francisco Address Import - Project to make San Francisco routable

US Forest Service Data - Project to enter (and keep object-updatable) all National Forests and Wilderness boundaries in California

San Jose Sidewalk Import — Import of City of San Jose sidewalk data

To add

  1. Streams
  2. Land cover (agriculture, forests, etc.) Possibly doing region by region

Completed imports

Point Reyes Trail Map Import - User:Beej71 imported trails from national park data.

San Diego - San Diego has public domain data available at ageitgey imported several layers in 2009.

California/CASIL State Parks from CASIL

California/MROSD Open space preserves MROSD

California/SCVWD Watershed and most other water resources in most of Santa Clara county SCVWD

Broken imports

missing info and cleanup required

county borders: unknown source of questionable accuracy. doesn't align with USGS topo and CASIL county borders

city border: based on Tiger data. quality is bad and doesn't align with USGS topo and CASIL county borders

both imports happened before API v0.6 and contain ways with too many nodes. They can't be modified anymore and have to be split in smaller ways first.


Links to some possible GIS data sources covering California. Please check copyright before using this data. Data created by the state is in public domain but some data is from different sources.

  • CalFire has a set of landcover layers that can be imported. The website says they may be distributed in any manner but a credit must be given. See California_Land_Cover.
  • TIGER 2009 In addition to roads, Tiger also includes area polygons, water polygons and points of interest for each county.
  • County areas added
    • Alameda, Alpine, Amador, Butte, Calaveras, Colusa, Contra Costa, Del Norte, El Dorado, Fresno, Glenn, Humbolt, Imperial, Inyo Kern, King, Lake, Lassen, Madera, Marin, Mendocino, Mariposa, Merced, Modoc, Monterey, Napa, Nevada, Placer, Plumas, Riverside, Sacramento, Santa Barbara, San Benito, San Joaquin, San Luis Obispo, San Mateo, Santa Clara, Shasta, Sieera, Siskiyou, Solano, Stanislaus, Sutter, Tehama, Trinity, Tulare, Tuolumne, Ventura, Yolo, Yuba
  • County water added
    • Alameda, Contra Costa, Monterey, Merced, San Benito, Santa Clara
  • County points added
    • Monterey, San Benito, Santa Clara
  • State area added
    • Military areas
  • CASIL download portal Collection of various data sets including county borders, state parks, opens space, tiger road and trains, ...
  • Bay area open space operated by downloads contain boundaries, trails, parking lots,... MROSD has given explicit permission to upload open areas and trails. closed areas should be excluded.
  • It is basically a database of every single park at any level, city, county, state etc. in California. It also includes blm, open space and more. The data is owned by Green Info, based out of San Francisco. Larry Orman is the contact person. He wants to meet with someone from OSM to discuss importing the data. We need to make contact with him to get permission to use the data and see what requirements there are.

Update: Green info is in the process to verify the license terms of OSM data. They are also interested in feedback, corrections and have started a project to add trails from osm into their own database. Contact osm user user:srmixter or user:Apo42 if you are interested in this project.

  • LA County Assessor Parcel Viewer Scans of Los Angeles County assessor maps. Maps contain references to "MB nnnn ppp-ppp", which can then be used to get tract maps at LA County Land Records Tract Maps, or references to "PM nnn ppp-ppp", which can be used to get parcel maps at LA County Land Records Parcel Maps. Both are useful for correcting and adding missing street names, boundaries, etc. These are all scans, so import is unlikely, but they are a great official resource when dealing with conflicting information or new development areas. Tag with source_ref=ABKnnnn-sss;{TRtttt-ppp|PMmmm-ppp} and "source=LACA;LACDPW" to document (nnnn-sss is the Assessor's map book and sheet number, tttt-ppp is the tract map book and page number (MB) or mmm-ppp is the parcel map book and page number (PM)).
  • Lots of LA County Data Plots, fire hydrants, addressed, building outlines, land use, etc...
    • I, user:Aaron Lidman, contacted Mark Greninger, from LA County Chief Information Office, who clarified most of the data on the site is public domain (see "Free" category on left). As of December 2012, I'm organizing to propose multiple imports using this data. Anyone else interested in the project, contact me.


Some info on copyright status in California

Background info from a 2009 court decision

County status

Counties that have granted use of their shapefile gis data and imports added. Add any imports completed and projects you are working on here. Also feel free to add other counties that specifically let their data be used.

related info

Info for other global imports and resources