Colonial stone ruins and Old Pira windmill traced on foot in St. Thomas hills

While tracing routes through satellite imagery in eastern Jamaica, an investigator spotted an unidentified stone ruin on the hills above Old Pira in St. Thomas and set out to examine it on the ground. Archival searches, including colonial maps and slave registries, had not yet yielded a clear record of the structure, which sat off a path the team had originally planned toward a separate tower site.

The outing also covered Bowen, a small coastal settlement near Port Morant that once served as a port for sugar and later bananas, linked historically to Golden Grove and now marked mainly by quiet traces of its maritime and plantation past. Official records place Old Pira Plantation from a 1682 land grant to Thomas Lynch, an English administrator who served several terms as governor of Jamaica. Lynch received large tracts in the east that year and died in 1684, after which the holding developed into a functioning sugar estate by the eighteenth century, when European demand for sugar, rum, and molasses drove expansion across the parish.

On a steep hill road above the coast, the team reached a large masonry ruin they had first noticed from aerial images. The walls are chiefly cut stone, with brick confined mainly to arches, door jambs, and window sills rather than full brick shells typical of some Spanish-period fort works. The layout includes gunports, pipe fittings set in original stonework, basement-level spaces, a well, and remnants described on site as helper quarters and industrial fittings. The presenter said the scale and finishes pointed to a wealthy planter residence and raised the possibility it served as the plantation’s great house overlooking Old Pira, though that identification remains unconfirmed.

Historical commentary in the segment noted that English estates after 1655 often relied on massive limestone blocks and heavy industrial layouts, while many Spanish-period works elsewhere used smaller stone, red brick, lime mortar, and curved arches. Similar Jamaican estates are thought to have held between 150 and 300 enslaved people at peak. Around 1780 the estate built the stone windmill tower still standing today, using wind power to crush cane before boiling and processing. After abolition in 1834 and full emancipation in 1838, many such properties declined amid falling prices, storms, and soil exhaustion.

First attempts to reach the windmill were blocked by dense bush on an overgrown track. The group later used another road, entered the tower, and recorded interior openings where the windmill arms would have passed, along with defensive gunports and a raised floor level. A resident in the area estimated roughly half an hour’s walk to the tower from a nearby point. The presenter said ongoing research now leans toward the hill ruin being the great house for the Bowen estate rather than Old Pira, and that further documentation will follow once records are verified.