U.S. Fish & Wildlife Service

Sacramento Fish & Wildlife OfficeServing the people, conserving the fish, wildlife, and plants of California

A Unit Of The Pacific Southwest Region

Bay Checkerspot Butterfly

2008 Final Critical Habitat Revision

Bay checkerspot butterfly

Photo: John Cleckler, USFWS

Unit Maps in PDF Format

Note: These are overview maps that appeared in the Federal Register. More detailed maps will be uploaded to our national Critical Habitat Mapper soon. Until then, developers in need of precise geospatial data should contact our GIS Branch at (916) 414-6600.

Map Index is 552 KB. Other PDFs are under 500 KB.

Map Index

Proposed Rule

Here are the proposed rule maps for reference.

Previously Designated Critical Habitat Units

For reference only, the following maps show the critical habitat units that were designated in 2001.

Last updated: November 13, 2017