St. John, Virgin Islands — The Caribbean (The West Indies)
Boiling Room
Intense heat. Steam rising from huge cauldrons. A foreman shouting to watch the last copper. This empty ruin was once the heart of Annabergs sugar operation.
Workers ladled the cane juice from kettle to kettle, gradually concentrating and purifying the boiling liquid. They then poured the juice into flat wooden pans where it cooled and crystallized into sugar.
Timing was critical. If juice were removed too soon from the last kettle, it became molasses instead of sugar crystals.
Erected by National Park Service, U.S. Department of the Interior.
Topics. This historical marker is listed in this topic list: Industry & Commerce.
Location. Marker has been reported permanently removed. It was located near 18° 21.828′ N, 64° 43.782′ W. Marker was in St. John, Virgin Islands. It was on Virgin Islands Route 20. The Annaberg Sugar Mill is a unit of the Virgin Islands National Park. Touch for map. Marker was in this post office area: St John VI 00830, United States of America.
We have been informed that this marker is no longer there and will not be replaced. This page is an archival view of what was.
Regionally, it was in one of the Lesser Antilles on the Caribbean Sea, on in the Atlantic Ocean, in North America, in the Western Hemisphere, in the Western World, and in the Anglosphere.
Other nearby markers. At least 8 other markers are within walking distance of this location: Freedom Across the Narrows (within shouting distance of this marker); History of Annaberg (about 300 feet away, measured in a direct line); Windmill (about 300 feet away); Crushing Cane with Wind (about 300 feet away); Life After Emancipation (about 300 feet away); Bake Oven (about 300 feet away); Producing Sugar (about 300 feet away); The Sugar Factory (about 400 feet away). Touch for a list and map of all markers in St. John.
Another marker is no longer nearby. Slave Quarters (was about 300 feet away but has been permanently removed).
Additional keywords. This marker is on the grounds of the Annaberg Sugar Mill.
Credits. This page was last revised on January 17, 2026. It was originally submitted on November 2, 2012, by Don Morfe of Baltimore, Maryland. This page has been viewed 570 times since then and 26 times this year. Photos: 1, 2, 3, 4, 5, 6. submitted on November 2, 2012, by Don Morfe of Baltimore, Maryland. • Bill Pfingsten was the editor who published this page.





