Filtering by
- All Subjects: Grand Canyon (Ariz.)
- All Subjects: Desert conservation
- Creators: Page, John H.
- Creators: Proudfoot, Glenn A.
Letter from John H. Page regarding his right to build a railway between Grand Canyon Station and the Canyon Copper Company's mines and hotel.
Letter from John H. Page to Carl T. Hayden regarding his company's rights to build a railway if they choose to.
Letter from John Page to Carl T. Hayden regarding a conversation conducted at Hotel Adams in Phoenix. Page states his concern over the national park bill in reference to his mining company.
Letter from John Page to Carl Hayden concerning the future of property ownership within the proposed boundaries of the national park.
Mr. Proudfoot, the leading pygmy-owl biologist in the United States, has worked for the last two years to gather and analyze the data that allows us to address issues regarding the genetic viability of ferruginous pygmy-owls in Arizona and to establish a framework for future management efforts. The two major questions addressed are (1) do populations of concern lack genetic variation relative to putative healthy populations, and (2) how unique are geographically distinct populations within a species of special concern?