Twilight near Tonsina River Location: Squirrel Creek Recreation Area, near Copper Center, AK Year: 2011 Merckdigitals catalogue number: 06-76982 Comments:

Neogene sediment exposed by Tonsina River Location: Squirrel Creek Recreation Area, near Copper Center, AK Year: 2011 Merckdigitals catalogue number: 06-76978 Comments:

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