how does one get gold on powder street 4? i can't seem to do it at all

it took me a while to figure it out, but this is how i did it.

buy a pig asap, only water 1 spot at a time to conserve water (you should only need to buy water once) you will need to gather a total of 9 pork and make 3 trips to town. this is how I did my trips:

1. 2 pork
2. 5 pork (send truck as soon as you get the 5th)
3. 2 pork and the pig (send truck as soon as you get the 2nd)

make sure you send your 3rd trip before the 3 min mark or it may not make it back in time. don't buy upgrades or anything, I didn't have to capture any bears, but if you do, just let them go... you don't need them.

I hope this helps!