Llano Grande is a flat area among mountains in
State of Mexico
The State of Mexico, officially just Mexico, is one of the 32 federal entities of the United Mexican States. Colloquially known as Edomex (from , the abbreviation of , and ), to distinguish it from the name of the whole country, it is the mo ...
in
Mexico
Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
. It is an old volcanic
caldera
A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the str ...
. It is at latitude 19.9910661 degrees north, longitude 99.6458468 degrees west.
Page 66
Mexico's Volcanoes: A Climbing Guide, By R. J. Secor
References
External links
Google Earth view
Calderas of Mexico
Landforms of the State of Mexico
Pleistocene calderas
{{México-geo-stub