Martin L Sorensen

• Geochemical analyses of rock and stream-sediment samples from Bald Rock, Bucks Lake, Chips Creek, and Middle Fork Feather River Roadless Areas, Butte and Plumas Counties, California
• Geochemical analyses of rock and stream-sediment samples from Birdseye, Nephi, and Santaquin roadless areas, Juab and Utah Counties, Utah