Exploring the World from the American West



The Native Trees of Colorado     A guide to all native trees of Colorado, with details for easy identification.

          Information about the Mountain Pine Beetle and the Pine Beetle epidemic, a compilation.

          Books about Colorado trees and Colorado's Natural History


The Detached Observer Blog, and The Tattered Flag


GNSS QA Plotting programs Anubisplot and teqcplot.py


Some results of 20 years of avocational studies: