Letter from W. W. Bass to Carl Hayden regarding the right to his property.

Letter from W. W. Bass to Harry Welch protesting the proposed national park bill.

Letter from Joseph J. Cotter to Carl Hayden regarding the use of water power and summer homes in the proposed park boundaries.

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

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 W. W. Bass to Carl Hayden lamenting the new regulations placed on his business.

Letter from W. W. Bass to Carl Hayden concerning the mining of asbestos in the Grand Canyon.