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- All Subjects: Grand Canyon National Park (Ariz.)
- All Subjects: Pima County (Ariz.)
- Creators: Arizona. Governor's Drought Task Force
- Creators: United States Geological Survey
The result of an application to the Arizona Department of Transportation Planning Assistance for Rural Areas (PARA) Program to conduct a multimodal transportation study to address transportation issues in the community. The purpose of the study is to identify the most critical multimodal transportation infrastructure and service needs within the Picture Rocks study area and recommend a program of short-range (0-5 years), mid-range (6-10 years), and long-range (11-20 years) improvements.
Geological examination of the park canyonland, with description of the rocks, water sculping process, volcanic cones and outflows, and land erosion. This edition is Volume 2, 1977 reprint, of the author's 1882 monograph. Includes 12 color maps, 10 color views and is number 280/1500.
Flooding and erosion within the Ranch Estates subdivision during the 2007 summer monsoon season raised the concerns of homeowners. This study addresses the impact of recent improvements in the drainage area upstream; provides updated flood-hazard mapping for the area, and identifies mitigation measures that could be implemented by the affected homeowners to address their flood/erosion hazards.
This Technical Data Notebook has been prepared in support of a Letter of Map Revision application for a portion of the Friendly Village Wash. It includes detailed hydrologic and hydraulic analyses performed to determine proposed regulatory discharge rates at key locations along the Wash, and to determine floodplain limits.