#4 River Gravel---$140 per ton Price: $140.00/ton Description: Commonly called Egg Rock, these smooth river rocks are between 1 and 2 inches across. #4 River Gravel is a mix of earth tone colors: brown, white, and tan. Note: not all "Egg Rock" is the same size. It's just a broad term for larger river pebbles. Uses: #4 River Gravel is best used for driveways, landscape areas, and drainage swales. This size is generally too large to walk on comfortably. Recommended Coverage: 100 square feet at 2 inches deep Colors: Brown, buff, white, tan