The Istmo (Isthmus of Tehuantepec) is
the narrowest part of México.
Only 200 kilometers (125 miles) of land separate the Gulf
of Mexico with the Pacific Ocean. It has two districts Juchitán
and Tehuantepec and borders at the north with the state of Veracruz;
to the south with the Pacific Ocean; to the west with Sierra Juárez
and Sierra Madre del Sur, and to the east with the state of Chiapas.
Prepare for hot weather ... and plenty of rain in the summer. The
of Tehuantepec is a rolling tropical lowland. The town of Tehuantepec
is located on the Papaloapan Plains, a scant 270 feet above sea
The isthmus was long considered a candidate for an interoceanic
canal. Costs were prohibitive and instead a transisthmian railroad
and Salina Cruz opened in 1907.