XERFR-AM/FM is a radio station in Mexico City. It is the flagship of Radio Fórmula's Primera Cadena. XERFR-FM broadcasts in HD and carries four subchannels, including a one-hour timeshift feed of XERFR-FM, the feed of 1470 XEAI-AM, and Radio Fórmula's Trión musical format.

Mexico City is the densely populated, high-altitude capital of Mexico. It's known for its Templo Mayor (a 13th-century Aztec temple), the baroque Catedral Metropolitana de México of the Spanish conquistadors and the Palacio Nacional, which houses historic murals by Diego Rivera. All of these are situated in and around the Plaza de la Constitución, the massive main square also known as the Zócalo.
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Mexico is a country between the U.S. and Central America that's known for its Pacific and Gulf of Mexico beaches and its diverse landscape of mountains, deserts and jungles. Ancient ruins such as Teotihuacán and the Mayan city of Chichén Itzá are scattered throughout the country, as are Spanish colonial-era towns. In capital Mexico City, upscale shops, renowned museums and gourmet restaurants cater to modern life.

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