Letter from Carl Hayden to W. W. Bass asking his opinion on the proposed boundaries of the National Park. GC Natl Park written on the letter in blue pencil.

Letter from Carl Hayden to W. W. Bass asking his opinion on the proposed boundaries of the National Park. GC National Park written on the letter in red pencil.

Letter from Carl Hayden to W. W. Bass informing Bass that he will not be able to go north to attend the Arizona Good Roads Association conference; however, he assures Bass that his rights as a land owner and miner will be protected.

Letter from T. E. Pollock to Carl Hayden asking his opinion on the proposed boundary lines.

Letter from Carl Hayden to W. W. Bass on the recent amendments made to the national park bill.

Letter from Carl Hayden to Hugh E. Campbell with an enclosed outline map of the proposed boundaries of Grand Canyon National Park.

Letter from Carl Hayden to C. T. Woolfolk thanking him for his support on the proposed bill. Hayden writes that the bill will not be introduced into the current session of Congress as any new legislation would be impossible to pass, but he is optimistic over the bill's future.

Letter from Carl Hayden to the Flagstaff Board of Trade concerning a resolution passed to change the Grand Canyon from a monument to a National Park. Hayden expresses interest in the idea while taking care to protect the water power and mineral resources that are derived from the canyon.