Okay kiddo, let me explain what isolated mountain peaks in Mexico means.
Mexico is a country located in North America and it has many mountains. A mountain is a very big hill that is super tall and very rocky. Now, imagine a mountain peak, which is like the top pointy part of a mountain.
When we say a mountain peak is isolated, it means that it is far away from everything else. Just like when you go to the park and you see a big hill, if there is a small hill far away from the big one, that small hill is isolated.
In Mexico, there are some mountain peaks that are very isolated, which means they are far away from the cities, towns, and people. These peaks are very difficult to reach and sometimes only expert climbers can reach them.
One of the most isolated mountain peaks in Mexico is called Pico de Orizaba. This peak is actually a volcano, like the ones you learn about in science class, but don't worry, it's not active anymore. It is located in the eastern part of Mexico and it is over 18,000 feet tall! To give you an idea, that's like 3,000 times taller than you!
Another isolated mountain peak in Mexico is called Nevado de Toluca. This peak is also located in the eastern part of Mexico and it is over 15,000 feet tall. It is also a volcano, but it is not active either.
So, to sum it up, isolated mountain peaks in Mexico are really tall pointy parts of the mountains that are far away from everything else, and two of the most isolated peaks in Mexico are Pico de Orizaba and Nevado de Toluca.