Mr. Proudfoot, the leading pygmy-owl biologist in the United States, has worked for the last two years to gather and analyze the data that allows us to address issues regarding the genetic viability of ferruginous pygmy-owls in Arizona and to establish a framework for future management efforts. The two major questions addressed are (1) do populations of concern lack genetic variation relative to putative healthy populations, and (2) how unique are geographically distinct populations within a species of special concern?

This Technical Data notebook has been prepared for a Letter of Map Revision application for a portion of the Trails End Wash located in Pima County, Arizona. The objective of the TDN and LOMR submission is to provide regulatory discharge rates and floodplain limits along the Trails End Wash using better topographic, hydrologic, and hydraulic data.

This Technical Data notebook has been prepared for a Letter of Map Revision application for a portion of the Del Cerro Wash located in Pima County, Arizona. The objective of the TDN and LOMR submission is to provide regulatory discharge rates and floodplain limits along the wash using better topographic, hydrologic, and hydraulic data.

This Technical Data notebook has been prepared for the Casas Adobes Wash located in Pima County, Arizona. The objective of the TDN is to provide discharges and floodplain limits along the CSA using better topographic, hydrologic, and hydraulic data. This is a local study and has not been submitted to FEMA.