Boulder in the Middlebury River, Ripton, Vermont
Hasselblad 500CM, Zeiss 80mm ƒ/2.8 T* lens, Kodak Tmax 100 film (TMX) rated at E.I. 64, developed in HC-110 1:49. The exposure, if I remember correctly, was around 8 minutes at ƒ/22 with a B+W ND 3.0 filter affixed to reduce the light and lengthen the required exposure time.
Elsewhere on the web: