Fast swirling water carries loose rocks which grind holes in the softer Troutdale Formation

cause of the holes of

Pothole Falls

potholes of

Troutdale Formation

random

It's about time you come down here, God, spoken

snippet of

Round Lake Loop Interpretive Trail Guide (PDF) (clark.wa.gov) This guide describes various water related features around Round Lake which corre spond to numbered trail-side posts.

tags

PDF