This was recorded on a sunny afternoon in late winter beside Squaw Valley Creek in Shasta-Trinity National Forest, Shasta County, California.

I recorded this on the same day as the previous episode at a spot beside the creek where the water was rushing over a large rock, which created a continuous deep glugging sound. The rock over which the water was rushing was just big enough, and the water was flowing just fast enough, that it created a hollow space on the downstream side which(I am no expert in fluid dynamics or acoustics, so this is pure speculation on my part) acted as a resonance chamber to produce the deep, low frequency sound you hear in this recording. I recommend that you listen with a good pair of headphones if you can.

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I hope you enjoy this recording, thank you very much for listening. Stay healthy, stay safe, stay sound.