Devil's Tower is a basalt tower out west US. It doesn't have sifter rock under the cap, but software rock was around it at one time.

Here is the park site, with photos.

Some mesas that the various tribes in New Mexico live on, don't have soft rocks under the top either.

I have seen green ones in Louisiana.

edit: I checked by web search, and it shows both gray and green, not in the same photo, in Louisiana.

My search phrase was 'Louisiana marsh moss'.

Here is the search.

https://duckduckgo.com/?q=Louisiana+marsh+moss&atb=v209-1&iar=images&iax=images&ia=images

I do a save as into a separate folder for all my maps. Basically c:\Profantasy\CC3Plus\crestar with sub-folders for all my sites.

When I start a new map, I browse over to the folder for that site and save it there.

Save as rectangular png.

1) ctrl-A to get the save as menu.

2) select rectangular png and type in a filename. Click save.

3) click left mouse button upper left corner of area you want.

4) move mouse pointer to lower right of area you want to save. click left again.

file saves. Look in folder you saved to.