One of two 80cm tall rocks retrieved from the bed of a tributary to the Penas Blancas, believed to be an indigenous grinding stone, Las Nubes, Costa Rica
Photo ID: Brett-Cole-Costa-Rica-00255
Photo size: 10.1 Mpixels (28.8 MB uncompressed) - 2592x3888 pixels (8.6x13 in / 21.9x32.9 cm at 300 ppi)
