South Pass

To secure a representative gallery of observed air quality conditions for each scene monitoring site, a series of images are selected from the period of record and archived in several resolutions as an Image Gallery set.

The series of images making up the historical image gallery typically consists of:

• A written site history and graphic illustration of the site location and operational period.

• Image spectrum consisting of a series of good to poor regional haze visibility conditions.

• Images of pristine, scenic, or meteorological interest.

• Selected representations of layered haze, regional haze, or pollution events of significant importance.

The South Pass image gallery was last updated in July 2010. Check this page again for future updates.