a stone's throw away

stone's throw

A short distance away from something. Brett wanted a shorter commute, so he moved to a house that is just a stone's throw away from his job.
See also: throw

(just) a stone's throw away

(from something) Go to within a stone's throw (of something).
See also: away, throw
References in classic literature ?
Everyone got up and began watching the movements of our troops below, as plainly visible as if but a stone's throw away, and the movements of the approaching enemy farther off.