One's particular domain or territory; one's native heath: Ann Arbor used to be my stamping ground
[1821+; fr 1700s sense, ''a place frequented by animals'']
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D. Copyright (C) 2007 by HarperCollins Publishers. Cite This Source
Idioms and Phrases with stamping ground
old stamping ground. A habitual or favorite haunt, as in Whenever we visit, we go back to our old stamping ground, the drugstore nearest the high school. This term alludes to a traditional gathering place for horses or cattle, which stamp down the ground with their hooves.
[ Early 1800s