STEELHEAD
Oncorhynchus mykiss

---

UPPER COLUMBIA RIVER ESU
LISTED ENDANGERED
August 1997

---

ESU* STATUS AND DESCRIPTION:  Listed as an endangered species on August 18, 1997.  The ESU includes all naturally spawned populations of steelhead (and their progeny) in streams in the Columbia River Basin upstream from the Yakima River, Washington, to the U.S.-Canada border.  Wells Hatchery stock steelhead are also part of the listed ESU.

* An Evolutionarily Significant Unit or "ESU" is a distinctive group of Pacific salmon, steelhead, or sea-run cutthroat trout.

CRITICAL HABITAT:
Current Status - Under development. On April 30, 2002, the U.S. District Court for the District of Columbia approved a NMFS consent decree withdrawing a February 2000 critical habitat designation for this and 18 other ESUs.

PROTECTIVE REGULATIONS:  The Endangered Species Act's Section 9 take prohibitions apply to this ESU.

ESU MAPS AND DATA:

• View Detailed Upper Columbia River Steelhead ESU Map  (Adobe Acrobat PDF format)
• View Range Map for all Steelhead ESUs
• Download steelhead ESU data in Arc/Info export and shape file format
• Download E-sized plot files of West Coast steelhead listings in RTL file format for large format plotters

STATUS REVIEW UPDATE MEMOS:
Status Review Update for West Coast Steelhead from Washington, Idaho, Oregon, and California, 7/7/97 (5.5 mb pdf)

FEDERAL REGISTER NOTICES:
View Federal Register Notices for Steelhead

You will need Adobe Acrobat Reader in order to view and print files in PDF format. This program is available for free from the Adobe web site by clicking this icon: