Science Center Objects

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.

Please respect the photographer: When using these photographs, please credit the photographer and source (eg. T.J. Hileman, courtesy of Glacier National Park Archives). The paired images at the top of this page are examples of proper crediting for each photo. Please contact ssoileau@usgs.gov for high resolution versions of images below.

Logan Pass animation.
Logan Pass 1957.
Logan Pass 1957.
Public domain
Logan Pass 2009.
Logan Pass 2009.
Public domain