Sitio Drago is located on the north shore of Isla Colon. It is a recently discovered large pre-Columbian archaeological site spread over 15 ha and shows the area to be of far greater significance historically than previously thought. The site consists of 15 low earthen mounds scattered over 500 m on a stabilized beach ridge in between dense tropical forest and the fringing coral reef.
Bocas del Toro has been considered to have had a low level of socio-political organisation in pre-historic times. Proyecto Arqueológico Sitio Drago (PASD) are to examine several different areas of the site in order to determine its history and internal structure, who they traded with, subsistence economy, and socio-political organisation of the site's inhabitants.
During 2002 and 2003 excavations, strong links were found connecting the site with the Pacific coastal regions of western Panama and Costa Rica (Chiriquí & Diquís). Radiometric age measurements place occupation of the site to AD 900-1150
Artifacts recovered from Sitio Drago include carved stone fragments, blades, stone celts of various sizes, shell and clay beads, ceramic appliqué figurines of humans, marine invertebrates, and various ceramic shards. Preservation at the site is excellent.
Goods imported from Pacific Chiriquí suggest Sitio Drago may lie within a broader "Greater Chiriqui". The broken jaguar effigy metates and sculpture fragments suggest the presence of prestige goods and social ranking
This project also seeks to determine whether a subsistence system operated at Drago. Linares proposed a local agricultural system focusing on swidden root and tree cropping supported by "garden hunting" and fishing. The presence at Sitio Drago of basin millingstones, carbonised remains of tree crops, a diverse array of terrestrial forest reptiles and mammals and a variety of reef, mangrove, and offshore fish generally supports Linares' contention. However, the presence of flat milling stones may suggest a more mixed seed/root/tree cropping focus.