I think it is both.
Yes because bodies of water counts as landforms.
it is a type of geyser
A hot spring that naturally shoots steam and boiling water is called a geyser.
A Conical Geyser (or cone)
it's a cone geyser.
Castle Geyser
Whirligig Geyser
The Geyser Tube is a Diet Coke geyser that is powered by Mentos. You can buy a Geyser Tube online from science project websites.
Norris Geyser Basin is the hottest geyser.
old faithful is a famous geyser
No, just a geyser.