So I went off to farm some Snow Lily for flasks, and I come across this cave. There is INSTANT spawns of Snow Lily when you pick up the last one. The nodes here can also spawn Golden Lotus, there's a few mobs in the cave but they are pretty easy to kill. I recommend following the cave anti-clockwise going through the top of the cave first, as this seems to be the best route, and just collect everything as you go! Enjoy!
This is in Kun-Lai Summit. You can see on the minimap all the nodes already, as I type this there's is 8 nodes up on my minimap.
Cave Entrance: 39.5,75.5
The respawn time for the Yeti's is pretty slow, one clear and you should be able to run around a couple times before they spawn again, there's alot ALOT of ghost iron deposits in here, and the Yeti's are skinnable.
Note: Make sure you have a pair of these Mist-Piercing Goggles - Item - World of Warcraft - There's some nodes it can see in the cave, you just have to put it on your char once, then you can leave it in your bags and you'll still see the nodes (You'll know if they are the special ones as they have a mist around the node)