Need Help with relief task

Rhino Rhino for Mac
1

I’ve been at this for a long time and I’m not getting anywhere. Am I missing some tool or method that should be used in this case?

Help

:disappointed:

Medallion2.3dm.zip (1.1 MB)

Capto_2016-07-02_04-36-18_PM.png1337×855 353 KB