Entre la sierra y la costa, encontramos un pueblo pequeño con un faro y una bahía tranquila.

This is a prepositional phrase that sets the scene: it tells us where the town is located.

• entre = between / among
• la sierra = the mountain range / the uplands
• la costa = the coast

So Entre la sierra y la costa means something like Between the mountains and the coast.

Spanish often places this kind of location phrase at the beginning of the sentence to give context first.

In this sentence, sierra means a mountain range or a mountainous area.

It does not mean just one mountain. A native English speaker might be tempted to think of mountain = montaña, but sierra usually suggests a chain or region of mountains/hills.

So:

• la montaña = the mountain
• la sierra = the mountain range / uplands

Spanish uses the definite article more often than English.

Here, la sierra and la costa refer to recognizable geographical areas, so Spanish naturally uses the:

• la sierra = the mountain area
• la costa = the coast

In English, you might sometimes say between mountains and coast in a poetic style, but Spanish normally wants the articles here.

The comma separates the introductory location phrase from the main clause:

• Entre la sierra y la costa, = introductory phrase
• encontramos un pueblo pequeño... = main clause

This comma is helpful and natural in writing, especially when the opening phrase is a bit longer. It is similar to English punctuation in sentences like:

• Between the mountains and the coast, we found a small town.

It can mean either one, depending on context.

For -ar verbs like encontrar, the nosotros form is the same in:

• present: encontramos = we find
• preterite: encontramos = we found

So without more context, this form is ambiguous.

Examples:

• Hoy encontramos un sitio bonito. = Today we find / are finding a nice place (less common, depends on context)
• Ayer encontramos un sitio bonito. = Yesterday we found a nice place

Usually, time words or the wider context make the meaning clear.

Because the personal a is generally used with specific people (and sometimes pets or personified beings), not with places or things.

So:

• Encontramos un pueblo. = We found a town.
• Encontramos a María. = We found María.

Since pueblo is a place, there is no personal a.

Both are possible, but the position of the adjective can slightly change the feel.

un pueblo pequeño

This is the more straightforward, literal description:

• a small town

un pequeño pueblo

This can also mean a small town, but it may sound a bit more descriptive, subjective, or stylistically marked.

In many cases both are fine, but adjective position in Spanish is flexible in a way that English learners often notice. A useful general rule is:

• after the noun = more neutral, descriptive
• before the noun = often more expressive, subjective, or stylistic

Here, pueblo pequeño sounds very natural and literal.

Not always.

With some adjectives, position can affect meaning. With pequeño, the difference is often:

• un pueblo pequeño = a physically small town
• un pequeño pueblo = a small town, sometimes with a slightly more literary or affectionate tone

In other contexts, pequeño before the noun can even suggest minor or unimportant, depending on tone.

So adjective position is worth paying attention to.

Because adjectives in Spanish must agree with the noun they describe in gender and number.

• pueblo is masculine singular → pequeño
• bahía is feminine singular → tranquila

So:

• un pueblo pequeño
• una bahía tranquila

This is a very important feature of Spanish grammar.

Because of gender agreement.

• faro is masculine → an adjective describing it would be tranquilo
• bahía is feminine → the adjective is tranquila

Since the sentence says una bahía tranquila, the adjective clearly matches bahía, not faro.

So the meaning is:

• a lighthouse and a quiet bay

not

• a quiet lighthouse and bay

Spanish normally uses an article with each noun when listing separate items, especially when the nouns have different genders.

• un faro = a lighthouse
• una bahía = a bay

Because one noun is masculine and the other is feminine, each one needs its own article.

A pueblo is usually a town or village, smaller and less urban than a ciudad.

Very roughly:

• pueblo = town / village
• ciudad = city
• aldea = village / hamlet, often even smaller

So un pueblo pequeño gives the sense of a small, possibly quiet settlement rather than a city.

The accent mark shows the stress and helps separate the vowels.

• bahía is pronounced roughly ba-Í-a
• The stress falls on -hí-

Without the accent, Spanish pronunciation rules would suggest a different stress pattern.

Also, the accent helps show that í-a forms a hiatus: the vowels are pronounced in separate syllables rather than merged.

It is pronounced roughly:

• ba-EE-ah

More exactly, the syllables are:

• ba-hí-a

The h is silent in Spanish, so you do not pronounce it.

So it sounds approximately like:

• ba-Í-a

with the stress on the middle syllable.

In this sentence, between is the best translation.

But in Spanish, entre can sometimes also mean things like:

• among
• in the midst of
• collectively between several people

For example:

• Entre amigos = among friends
• Entre todos = between all of us / all together

Here, though, it is clearly locational:

• Entre la sierra y la costa = between the mountains and the coast

Because the sentence is not just saying that the town exists; it is saying that we found / we find it.

Compare:

• Hay un pueblo pequeño... = There is a small town...
• Encontramos un pueblo pequeño... = We found / find a small town...

So hay would describe existence, while encontramos describes discovery or encounter.