Thread:Stray Bird/@comment-28048698-20170613021249/@comment-4802891-20170714111216

@Birdie : The drops on the mountains are consistant but broken between all three materials. If you go to a specific spot, the drop will be higher for that one material because the high number of drops will only be for this material (and the extra food/water on the side)

Basically, if you have nothing to farm in particular, 3 battles in the mountain will be more lucrative than one battle in each spot.