Tricos on Conemaugh River

Where they meet in Saltsburg, they form the Kiskiminitas River, which drains into the Allegheny near Schenley. And happily there are fish all the way down.
 
It's amazing to me that a river can be so dead for miles and then become revived to that extent. It shows us that we stopped all the nonsense in the nick of time doesn't it?
 
albatross wrote:
Or some other trigonometric function...

if a trike is tracing a sin wave but flying towards you, it will appear to bob up and down. Just sayin!
While you'd think that would be true, they don't really appear to bob up and down. It looks more like the waves of the ocean.
 
So last night I was doing some work outside. Just about the time I'd hang apiece of soffit one of these little buggers would land on it. their likely coming out of the little feeder crick that starts at the end of my yard. By night fall there were probable a few hundred on my porch. I'll also add, for the vast majority, that against the dark aluminum, they appear a good deal lighter than they actually are.
 

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On the Conemaugh River below/downstream of Johnstown? Those pics are of flies from Saltsburg? Amazing!!!
 
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