3 cubic yards of gravel is about the size of a pickup truck bed, heaped. When poured into a loose pile, it measures 9.25 ft (2.82 m) wide and 3.61 ft (1.1 m) tall.
Nobody has photographed 3 cubic yards of gravel yet.
Volume
Weighs 4.3 US tons (3.9 tonnes)
about the size of a pickup truck bed, heaped
Gravel typically ranges 1.6–1.9 g/mL depending on how it's packed. A firmly packed scoop weighs more.