
Piled up, they fill
and weigh 551 lb (250 kg)
about 2 times the size of a wheelbarrow load
Size and weight estimated by AI from typical values. Sizes and weights are typical for an adult or standard river stone; real ones vary.
A collection of 1,000 river stones forms a heap 4.37 ft (1.33 m) wide and 14 in (35.4 cm) tall. This amount is about 2 times the size of a wheelbarrow load and is shown here next to a traffic cone, an adult person, and a car tire.