A large boulder?
If you go through the photos at this link you will see it.
https://www.instagram.com/p/BpQYPX2gzlq/?taken-by=repkevinmccarthy
Vs. a small boulder.
I used to work for CalTrans. Boulders were ranked roughly from 1000 pound to 4000 pound sizes.
Not just a large boulder, but a GIANT boulder!