Petroglyphs from Krasnoyarsk Krai, Russia
<a href="//commons.wikimedia.org/wiki/User:Schreiber" title="User:Schreiber">User:Schreiber</a>
first millenium B.C.
M. G. Moshkova (ed.), Stepnaya polosa Aziatskoy chasti SSSR v skifo-sarmatskoye vremya. Moskva 1992, p. 438