Biological Opinions - Bureau of Reclamation

3 ACTION AREA
The action area includes “all areas to be affected directly or indirectly by the Federal action and
not merely the immediate area involved in the action” (50 C.F.R. § 402.02).
For purposes of the USFWS’s BiOp, the action area includes UKL in south central Oregon, and
Gerber Reservoir and Clear Lake in the Lost River drainage of southern Oregon and northern
California downstream to IGD (Figure 3.1). Please note that Clear Lake and Clear Lake
Reservoir are the same water-body and the names are used interchangeably throughout this
document. Within the Upper Klamath Basin, the action area includes Agency Lake, UKL and its
tributaries, Keno Reservoir (also called Lake Ewauna), the Lost River including Miller Creek,
and all Reclamation-owned facilities including reservoirs, diversion channels and dams, canals,
laterals, and drains, including those within Tule Lake and Lower Klamath National Wildlife
Refuges (Figure 3.2). The UKL tributaries are included in the action area because the
conservation measures for listed suckers are likely to occur in these tributaries, not because the
Project operations affect these species or their habitat within the tributaries.
For the NMFS, the action area includes the mainstem Klamath River from IGD at River Mile
(RM) 190 to the Klamath River mouth, as well as tributaries between IGD and the Salmon River.
The Klamath River tributaries are part of the action area because one of the proposed
conservation measures focuses on providing benefits to coho salmon populations within these
tributaries.
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