Letter To The Editor: Really, Dog Owners?

Los Alamos
Today, with an out-of-state visitor, I hiked the Canyon Rim Trail and was astonished and embarrassed by all the dog droppings on and along the trail.
One owner had dutifully picked up droppings and left the full bag by the path for someone else to remove it!
My visitor is from an area of the country where citizens are very concerned about the environment and keeping it pleasant for everyone; she was quite surprised to find Los Alamos residents so uncaring.
This dog owner behavior seems puzzling when one considers that supplies are provided at the trailhead; all the owners have to provide is some common courtesy.