stalling help

ok. today i was driving my 95' LS and i was low on gas but the light wasnt on. but on slight inclines the car stalled and died. so i just wanted to know where the fuel pick-up line is in the gas tank or what caused this to happen.

my 98 camery, 99 civic, 95 civic, 04 crv, and 95 windstar stalls too when the gas is low. when i fill it up with gas, it doesnt do it. i figured, not enough fuel causes the problem ;)