The City of Durango Parks and Recreation Department has an Urban Forest Tree Inventory (PDF) of all city-owned and managed trees. The data was collected on hand-held computers using Geographic Information Systems (GIS) and Global Positioning Systems (GPS) information formats. This inventory is intended to give an accurate estimate of condition, number of trees and help re-evaluate tree management needs in the City of Durango.
This Urban Forest Tree Inventory PDF (in the link above) is very large and may take a while to load.