This was recorded on a clear spring night under a full moon beside Summit Meadow Lake in Marble Mountains Wilderness, Klamath National Forest, Siskiyou County, California. I recorded this tree ears style, in which a mic is placed on either side of the trunk of a tree, in this case a Red Fir. Though I recorded all night, this part of the recording is from the wee hours of the night when the frog chorus was starting to die down.