Hi, Limonsito. When you're talking about informal things, such as the local name for a cave or something, you can use "called". When you're talking about things with official names, you might want to use "named" but you wouldn't be wrong if you used "called".
Here are a few examples:
Do you see that big rock over there? They/we call that "witches rock".
Do you see that town on the horizon? It's named/called Greenville.
That church was named after a famous saint. (Don't use "called" followed by "after")
They call him "booger face", though he's really named Gerald.
Something/someone is usually referred to as being 'named'/'re-named' if it has recently been the subject of a conscious decision, or even a ceremony, to 'bestow' a name/new name upon it/him/her. It's rather formal.
'Called' is much more common.
You hear 'named' in the context of babies (They've named him Fred, after his father) and naming ceremonies ('I name this ship HMS Sieve), but if you are unsure, it is better to use 'called', as that virtually always works.