The coordinates 25 degrees north and 90 degrees west are located in the Gulf of Mexico, specifically in the western part of the Yucatan Peninsula in Mexico.

Here's why:

* Latitude (25°N): This line of latitude runs through the southern part of Mexico, just north of the Yucatan Peninsula.

* Longitude (90°W): This line of longitude runs through the center of the Gulf of Mexico.

Therefore, the intersection of these coordinates falls within the Gulf of Mexico, close to the coast of Mexico.