mañana -The Sierra de Los Tuxtlas is the insular volcanic mountain range centered on
Catemaco, bordering  on the Gulf of Mexico in south central Veracruz, Mexico. The
sierra encompasses the gulf coast, slopes and foothills of the volcanoes, extending
inland from near Angel R Cabada to the northeast, to southwest of Acayucan and
northwest  to near Laguna del Ostion.

The  two major Sierra components are Volcano San Martin Tuxtla  to the northwest and
the Sierra Santa Marta to the southeast. The southern sierra apparently formed almost
7 million years ago, while the northern portion began to form 3.5 million years ago.

The overlap from San Martin Tuxtla Volcano onto the slopes of the Sierra Santa Marta
dammed several draining rivers and formed Laguna Catemaco.

Volcano San Martin Tuxtla
Sierra de Santa Marta
San Martin Pajapan
Los Tuxtlas, Veracruz, Mexico

Sierra de Los Tuxtlas