Letter from W. W. Bass to Carl Hayden on the proposed park boundaries which he deems 'outrageous' and the effect such a bill could have on Hayden's reelection chances.

Letter from W. W. Bass to Carl Hayden written on Bass Camps and Trails stationary. Bass urges Hayden to consider the implications to his farming and mining rights if the bill is passed.

Letter from Sanford Rowe and W. W. Bass to Carl Hayden requesting a re-examination on the proposed park boundaries as they are disadvantageous to current land owners surrounding the canyon.

Letter from W. W. Bass to Carl Hayden requesting the boundaries of the park be reconsidered as a large portion of the land is suitable for mining and farming.

Letter from Carl Hayden to L. S. Williams informing the Saginaw and Manistee Lumber Company that a bill extending the timber cutting rights in the Canyon did not pass in Congress.

Letter from L. S. Williams to Carl Hayden suggesting a boundary amendment to the national park bill.

Letter from John Page to Carl Hayden concerning the future of property ownership within the proposed boundaries of the national park.

Letter from Carl Hayden to H. F. Robinson with attached notes from W. W. Bass and C. H. Gensler. Hayden solitices advice concerning the Havasupai Tribe needs for grazing and access to natural resources.

Letter from Joseph J. Cotter to Carl Hayden providing a rebuttal to W. W. Bass' objections to the Grand Canyon National Park Bill.