Tres Islas is a small pre-Columbian

Pre-Columbian

The pre-Columbian era incorporates all period subdivisions in the history and prehistory of the Americas before the appearance of significant European influences on the American continents, spanning the time of the original settlement in the Upper Paleolithic period to European colonization during...

 Maya

Maya civilization

The Maya is a Mesoamerican civilization, noted for the only known fully developed written language of the pre-Columbian Americas, as well as for its art, architecture, and mathematical and astronomical systems. Initially established during the Pre-Classic period The Maya is a Mesoamerican...

 archaeological site

Archaeological site

An archaeological site is a place in which evidence of past activity is preserved , and which has been, or may be, investigated using the discipline of archaeology and represents a part of the archaeological record.Beyond this, the definition and geographical extent of a 'site' can vary widely,...

 located 20 kilometres (12.4 mi) north of Cancuen

Cancuén

Cancuén is an archaeological site of the pre-Columbian Maya civilization, located in the Pasión subregion of the central Maya lowlands in the present-day Guatemalan Department of El Petén. The city is notable for having one of the largest palaces in the Maya world.- Ancient Cancuén :Cancuén was a...

 in Petén Department, northern Guatemala

Guatemala

Guatemala is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, and Honduras and El Salvador to the southeast...

.

Site

Dating to the Early Classic

Mesoamerican chronology

Mesoamerican chronology divides the history of pre-Columbian Mesoamerica into several periods: the Paleo-Indian , the Archaic , the Preclassic , the Classic , and the Postclassic...

, Tres Islas was typically subordinate to other, stronger polities

Polity

Polity is a form of government Aristotle developed in his search for a government that could be most easily incorporated and used by the largest amount of people groups, or states...

, including that centered at Cancuen. The site contains 3 Maya stelae

Maya stelae

Maya stelae are monuments that were fashioned by the Maya civilization of ancient Mesoamerica. They consist of tall sculpted stone shafts and are often associated with low circular stones referred to as altars, although their actual function is uncertain. Many stelae were sculpted in low relief,...

, and structure similar to Uaxactun

Uaxactun

Uaxactun is an ancient ruin of the Maya civilization, located in the Petén Basin region of the Maya lowlands, in the present-day department of Petén, Guatemala. The site lies some north of the major center of Tikal...

’s Temple Observatory.

Within the vicinity of Tres Islas are the San Francisco Hills, an area covering approximately 35 square kilometres (13.5 sq mi) and typified by steep limestone

Limestone

Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....

 hills dotted with small caves.