USGS home Scientific Investigations Map 2940 

TKso-1. The Southern Picket Range [MBne] is eroded from orthogneiss of the Skagit Gneiss Complex (TKso). View south across McMillan Creek from south ridge of Luna Peak. Photographed in 1966. View image with annotation
Other photos that show unit TKso:





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Photo Indices: Captions (Additional photos home) | Map | Young rocks and deposits | Older rocks west | Older rocks east