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

Photographer Wier a 19th Century Photographer in the 21st Century

GNSS QA Plotting programs Anubisplot and teqcplot.py

Some results of 20 years of avocational studies: