Highlands Many important Archaic sites are located within Highland Mexico, likely due to the early extensive research into the Archaic period by
Richard MacNeish in the Valley of Tehuacán. Because archaeologists are skeptical of the accuracy of the radiocarbon dates and the integrity of stratigraphic levels, data and artifacts found in Tehuacán have been re-examined and re-analyzed many times. Within the valley, one major site is
Coxcatlan Cave. Coxcatlan Cave contained 15 out of 33 Archaic period components found in MacNeish's survey, as well as 75% of the stone tools. • El Gigante rock shelter: El Gigante rock shelter is in the southern highlands of Honduras with excellent organic preservation. It was occupied seasonally and has storage pits. It was excavated in 2000 and 2001 and contains remains of wild plants and animals, as well as domesticated squash, though not maize.
Lowlands • Chiapas coast: Six large shell mounds on the coastal plain are some of the earliest sites in the region. The area has been predominantly excavated and surveyed by Barbara Voorhies. :*
Cerro de las Conchas: Cerro de las Conchas is the earliest of the Chiapas shell mounds, dating between 5500 and 3500 BCE. It is 3.5 m high and 100 m in diameter and located at the edge of the El Hueyate mangrove estuary. It was periodically occupied as a location to collect and process marine resources, especially clams and shrimp. :* Tlacuachero shell mound: Tlacuachero is also a shell mound that was seasonally occupied to gather and process marine resources, such as clams, fish, and turtles. 57 obsidian flakes have been found that seem to originate from highland Guatemala, suggesting there may have been trade networks. Two burials have been excavated at the site. •
Colha: Colha and other nearby sites, such as Cobweb Swamp,
Pulltrouser Swamp, and Freshwater Creek, are located within the Northern Belize Chert-Bearing Zone and are important sites for chert starting in the Archaic period and continuing into the Preclassic and Classic period. The first permanent settlements at Colha begin around 3000 BCE and Colha remains settled in later periods. As a result, Colha has one of the best defined Late Archaic sequences and is useful in tracking changes from the Archaic period into the Preclassic. • Actun Halal: Actun Halal is a 30 m long rock shelter in the
Macal River Valley in Western Belize. The site was occupied from around 2400 to 1210 BCE. Constricted adzes and evidence of maize and cotton production have been found. • Xihuatoxtla rock shelter: Xihuatoctla rock shelter is located on a tributary of the central
Balsas River. The site dates between 6990 and 6610 BCE. Archaeologists have discovered 251 chipped-stone artifacts, as well as hand and
milling stones. == Connection to Maya Preclassic ==