Perhaps it is, though you may know of one even more perfect. This stream follows a country road high in the empty hills above the small town of Ceri in the Welsh county of Powys. We've shared many sections from this 2019 recording over the four years of Lento. The area feels magical, being very near to the Ceri Ridgeway (Kerry in English) an ancient route used for trading between Wales and England. This section of time is from the dead of night where no wildlife is audible, the entire focus is of the stream, and the acoustical properties of the hidden dell ankle deep in dry leaves. 
We often think about what it is that makes the sound of a perfect stream. The particular combinations of musical tones maybe, as the water flows down over uneven rocks. The spatial details that make it one coherent sound-scene, panoramic, from far left to far right. The unique blending of white noise properties, acoustic reflections and other phenomenon created by the complexity  of the physical space itself. Every one of these audible aspects are seen by our listening mind to form the sound image we hear. Every detail matters in the composition of the audible image, and aural phenomenon of a perfect stream. 
if you've not yet tried listening to Lento through headphones or Airpods how about giving it a go. Phone and room speakers can't convey the spatial content central to Lento recordings and that are key to the sound-feel that we call 'captured quiet'. The quiet is what hangs between the voids in a long-form spatial soundscape. It is only perceivaable with headphones or Airpods and it can take ten minutes or more to begin to sense its presence.