User blog comment:Kogath/Monster Hunter: World Discussion/@comment-26995086-20180401175613/@comment-6050823-20180402131845

You've done a great job on this whole thing and I'm impressed, there are a few minor things I will mention.


 * I wanted to mention that the purple substance on Speartip Crag is just water from hot springs in Heaven's Mount, while the blue liquid in the Rotten Vale is actual acid (Seems to be a byproduct from the effluvium decomposing bodies in the Rotten Vale).
 * I've been iffy about that second skull belonging to another Dalamadur for the longest, it has always looked a bit different to me, compared to the one seen above, however, after looking at those screenshots you took of it I'm certain it is another one that died in the past.
 * The Rotten Vale is a mixture of dry terrain and effluvium, according to the Third Fleet Master.