you cant
u can catch it on route 103
There is no Route 214 in Pokemon LeafGreen. There is however a Route 214 in Pokemon Diamond and Pearl. It connects Veilstone City with the Valor Lakefront.
route 111
there isn't
cerulean cave,pokemon mansion, route 13, route 14.
In Pokemon Tower in Lavender town
On route 16.
get the Poke Flute !
on route 214
"How do I get an ekans in Pokemon leafgreen?"You can't catch an ekans in Pokemon leafgreen, but you can catch it in Pokemon firered and trade it.I got my Ekans at route 10 at lv. 4
Route 12.
On the route below cerulean city.