# Endangered and Threatened Wildlife and Plants; Designation of Critical Habitat for Peninsular Bighorn Sheep and Determination of a Distinct Population Segment of Desert Bighorn Sheep (Ovis canadensis nelsoni)
> **US Fish and Wildlife Service** · Final rule. · Published 2009-04-14 · Effective 2009-05-14 · 74 FR 17288
## Document
- **Document number:** E9-7767
- **Category:** endangered-species
- **Sub-agency:** US Fish and Wildlife Service
- **Federal Register citation:** 74 FR 17288
- **CFR reference:** 50 CFR 17
- **Publication date:** 2009-04-14
- **Effective date:** 2009-05-14
## Abstract

We, the U.S. Fish and Wildlife Service (Service), designate revised critical habitat for the Peninsular bighorn sheep, a distinct population segment (DPS) of desert bighorn sheep (Ovis canadensis nelsoni) occupying the Peninsular Ranges of Southern California, under the Endangered Species Act of 1973, as amended (Act). In total, approximately 376,938 acres (ac) (152,542 hectares (ha)) fall within the boundaries of the critical habitat designation. This revised designation of critical habitat for Peninsular bighorn sheep reduces the 2001 designation by approximately 467,959 ac (189,377 ha). The revised critical habitat is located in Riverside, San Diego, and Imperial Counties, California.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/04/14/E9-7767/endangered-and-threatened-wildlife-and-plants-designation-of-critical-habitat-for-peninsular-bighorn)
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