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. I could really use your support. Please consider helping this podcast get made by making a donation, becoming a Patreon supporter, or becoming a monthly supporter through Anchor. You can do so by visiting the following links- https://soundbynaturepodcast.com/donations/ https://www.patreon.com/soundbynaturepodcast You can become a monthly supporter at Anchor by clicking the link at the end of this podcast description. Thank you to my current and past monthly supporters, those of you that have made one time donations, and my supporters on Patreon. I truly appreciate your help! You can see pictures of the area this was recorded, as well as pictures from other locations I have gathered recordings, by visiting the Instagram and Facebook pages for the podcast. You can find them by searching @soundbynaturepodcast. Questions or comments? Send me a message on Facebook or Instagram, or email me at soundbynaturepodcast@gmail.com I hope you enjoy this recording, thank you very much for listening. Stay healthy, stay safe, stay sound.