Some sort of "air burper" on the pipeline? Kirk and Zack clearing some downed bruish from the pipeline trail Tunnel #1 The tunnels were just big enough to walk through - later we had to duck to make it through them - they were not very big We saw these all over the first 3 tunnels - swarms of daddy long legs spiders and crickets. It was really weird. Tunnel #2 The little slough/channel behind the island in the river Kirk found an insulator in one of the tunnels This looked like petrified wood in one of the tunnels This pipe had seen better days The last tunnel we had to walk on the pipe - the water on either side got to be about a foot deep Hard to see how deep the water is, but it is close to a foot deep here Pipe where it exits the last tunnel. They had cables securing it before it headed down the hill The pipe goes down the hill to the water at this point Looking across the river from the last tunnel exit The exit from tunnel #3 - it had kind of caved in a bit due to a landslide Tunnel #4 had a curve in it. Zack in tunnel #4 The tunnel walls had this strange covering - I think these are calcite deposits The pipe sprung a leak! Relatively flat, open spot on the pipeline trail An old cut log and you can see the coax cables in the air on this section Interesting cliffs above the Clackamas river along the pipeline trail The river bend where we started - the location of the old Oregon City Water Keeper house A Huge tree that came down on the pipeline