1 general:: Phrase(s): (just) a stone’s throw (from something) Go to within a stone's throw (of something).
McGrawhill's American Idioms And Phrasal Verbs
2 general:: A very short distance, as in They live just a stone's throw from us. This metaphoric term alludes to how far one can toss a stone. [Second half of 1500s]
American Heritage Idioms