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Letter From Carl Hayden to Fred S. Breen Regarding Sale of Bright Angel Trail

ContributorsHayden, Carl T. (Author)
Created1924-12-16
Description

Letter from Carl Hayden to Fred S. Breen regarding Yaki Point, the sale of Bright Angel Trail and the building of a road between Maine and the Grand Canyon.

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Letter From Carl Hayden to Fred S. Breen

ContributorsHayden, Carl T. (Author)
Created1924-03-13
Description

Letter from Carl T. Hayden to Fred S. Breen concerning the expenditure of $100,000 to purchase Bright Angel Trail.

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Development of ADOT Application Rate Guidelines for Winter Storm Management of Chemical Additives through an Ambient Monitoring System

ContributorsArizona. Department of Transportation (Issuing body) / United States. Department of Transportation (Contributor) / United States. Federal Highway Administration (Contributor)
Created2015-10
DescriptionAn evaluation of the relationship between the application of anti-icing and deicing chemicals during winter storms and and potential impacts to soil and vegetation.
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Development of ADOT Application Rate Guidelines for Winter Storm Management of Chemical Additives through an Ambient Monitoring System

ContributorsArizona. Department of Transportation. Research Center (Issuing body) / Arizona. Department of Transportation (Publisher) / United States. Department of Transportation (Contributor) / United States. Federal Highway Administration (Contributor)
Created2015-10
Description

An evaluation of the relationship between the application of anti-icing and deicing chemicals during winter storms and and potential impacts to soil and vegetation.