Establishment of new growth and expansion of existing sparse vegetation is obvious along the upper ridge line (center of photo). Persistent snowpack in these alpine regions once deterred profusion of growth, but changing climate conditions have permitted these species to expand their range.
Sources/Usage: Public Domain.
Sources/Usage: Public Domain.
- Overview
Establishment of new growth and expansion of existing sparse vegetation is obvious along the upper ridge line (center of photo). Persistent snowpack in these alpine regions once deterred profusion of growth, but changing climate conditions have permitted these species to expand their range.
Sources/Usage: Public Domain.Logan Pass 1957. Public domain
Sources/Usage: Public Domain.Logan Pass 2009. Public domain