a white sand dune in a sand pit
a gravel dune in a sand pit
a planisphere or map mnde on a background of gravel
Stone wall for construction and the real restoration
gravel embankments for roads or pedestrian walkways
Different colored gravel stones for backgrounds.
Old ancient surfaces of granite, marble folk construction.
Various natural materials for coating a driveway, path or trail ride
gravels of a sand pit on full page
stones of a sand pit on full page
panoramic photograph of a sand and gravel pit
texture red earth dune of a sand pit
Two rusty old nails fastening a train track.
River rock pebbles with shades of different gray.