La Joyanca is the modern name for a pre-Columbian Maya archaeological site located south of the San Pedro Martir river in the Petén department of Guatemala. It is east of the Maya site of La Florida (Namaan), now the modern town of El Naranjo on the Mexico-Guatemala border.
The site was discovered in 1994 during the construction of the Xan-La Libertad oil pipeline in Guatemala. It was immediately recognized as an important, undiscovered Classic period (AD 200-900) Maya city and became the focus of an archaeological project.
The central portion of La Joyanca includes several temple-pyramids and other mounds. The two tallest of these, situated in the Plaza Principal, are 10 and 12 meters high. Several of these have been restored, including Structure 6E-12, which contains several vaulted rooms, the remains of hieroglyphic inscriptions, and a stuccoed image of K'inich Ajaw, the Classic Maya sun god.
Also noteworthy among the central buildings is Structure 6E-13, which has several rooms atop a platform 6 meters high and 56 meters long.
Although the Grupo Guacamaya seems to be a palace, La Joyanca lacks the clearly identifiable center characteristic of most archaeological sites in the central Petén. There are few sculpted monuments, no ballcourt, and scant signs of a strong, centralized royal dynasty comparable to those functioning at ancient Maya sites like El Peru or Tikal.
Likewise, settlement in the area seems to have fluctuated, with longstanding occupied areas standing in stark contrast to communities like the small Gavilán Group, which seems to have been occupied for scarcely a generation.