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Dr. Mattson's comments on

Contingencies of Coexistence

Senate Committee on Public Works

& The Environment

Download
Dr. Mattson's
expert testimony
Scientist's Letter
to Governor Mead

Download a testimony submitted to Congress and a letter sent to WY Gov Mead on the problems of delisting & why we need H.R. 2532 

Dr. Mattson's
expert testimony
Cabinet-Yaak presentation title slide.jp
Dr. Mattson's comments on