Judy Johnson1:
Geology 101
Judy Johnson1:
Big Tree
Judy Johnson1:
Ripples
Judy Johnson1:
Patterns in the Rocks
Judy Johnson1:
More Ripples
Judy Johnson1:
What the Glacier Brought
Judy Johnson1:
More Glacier Rocks
Judy Johnson1:
Layers
Judy Johnson1:
Glacial Polishing
Judy Johnson1:
Hornet Nest
Judy Johnson1:
Avalanche Meadow
Judy Johnson1:
Rocks and Creek