Creating surface using Elk plugin and Mars DEM

Hello!
I use Elk to create surfaces using DEM from Earth, and now am trying it for the Mars.
I found a DEM for Mars https://www.higp.hawaii.edu/prpdc/CTX_DEMs/Landforms/Gully/Gully.html
and used the simple script that I use to create surfaces for the Earth. No surface seems to be created, even though I am not getting an error.
Mars DEM.gh (21.6 KB)
Thank you in advance for your help! Courtney

Hi Courtney -

I’m not sure why that isn’t throwing an error - when you switch lon and lat, this seems to work fine with that DEM:

(Also note that the domain for the latitude should go from smallest to biggest and not the other way around as you had it).
-wim

Thank you @wim!