Balberta's wealth flowed through trade networks that stretched over a thousand kilometers to the highlands of central Mexico. Archaeologists have recovered 124 pieces of green obsidian from the site -- a volcanic glass that originated at the Pachuca quarries controlled by Teotihuacan. Ten green Pachuca obsidian projectile points were found in the site core alone, all in a pure Teotihuacan style, half of them from the ceremonial architecture and the rest from ritual or residential contexts. Four additional projectile points were fashioned from grey obsidian originating even further afield: three from Zaragoza in Puebla and one from Otumba in Mexico State. Sixty-five percent of the green obsidian artifacts were concentrated in four caches within Structure 1, the Great Platform, suggesting that these imports were not simply trade goods but objects of ritual significance, carefully stored and deliberately placed.

The site core consists of 22 structures occupying 18 hectares of sandy, fertile sedimentary soil between the La Gomera and Achiguate rivers. The Achiguate floods seasonally, constantly reshaping the local terrain -- a reminder that building anything permanent here required working against the landscape. Balberta's builders adapted. A defensive wall began at the southwest corner of Structure 1 and surrounded the Mound Plaza on three sides, standing up to 3 meters tall. On the east side, a natural watercourse was redirected into a deep ditch, turning the river itself into a moat. A six-meter-wide causeway ran eastward from Structure 3 to a cluster of smaller structures. The architectural style continued local traditions stretching back to the Middle Preclassic -- plazas with aligned structures -- while adding fortifications that reflected the shifting politics of a region where power was never stable for long.

At the heart of Balberta, the Mound Plaza rises two meters above the surrounding plain, supporting 16 structures arranged in five rows. Structure 10, the tallest in the plaza, is a pyramid measuring 8 meters high and 68 meters across at the base, built through at least six phases of construction stacked one atop another. To the north stands Structure 1, the Great Platform, the site's largest construction. Its final form measured 190 meters across, divided between a lower section at 4 meters and a higher section reaching 7 meters -- the upper portion alone containing 76,800 cubic meters of compacted clay fill deposited in a single construction phase. Elite residences topped the high platform; elite burials and ceremonial offerings occupied the lower section. One burial included a green obsidian projectile point, a black obsidian spear, ceramic earspools, an urn, and a ceramic bowl. Of the 26 burials excavated between 1984 and 1987, 24 were oriented east-west with skulls facing west, and most were covered in red pigment.

Balberta's sudden abandonment around AD 400 appears tied not to internal collapse but to a geopolitical decision made far away. Teotihuacan, which had maintained a trading relationship with Balberta, shifted toward direct intervention in the Maya world -- as it did at Tikal and elsewhere. Rather than continue trading through Balberta, Teotihuacan appears to have founded Montana as a direct colony in the region, undermining Balberta's role as an intermediary. The city that had grown wealthy as a node in someone else's network lost its reason to exist when the network was rerouted. Frederick J. Bove, who investigated the site extensively, documented this transition through ceramic sequences and obsidian sourcing. What remains at Balberta is the architecture of a place that thrived on connection -- defensive walls built against local rivals, ceremonial caches filled with imports from a distant patron, and burial goods that mixed local and foreign traditions. The cocoa-bean effigies, hundreds of them, suggest a city that understood the value of what it could grow and what it could trade.