This interactive 1798 map of Tortola uses tools for fading, zooming and aligning the old map that need a larger screen and a mouse.
Send yourself the link to open later on a computer:
Tip: open the link in Chrome, Edge, Firefox or Safari on a computer.
Temporarily shift, turn or resize the 1798 map to match the coastline you're looking at. This puts other areas out — press Snap back when done.
Plan of Tortola, 1798
George King survey, dedicated to Isaac Pickering.
Use the bottom slider to fade between the 1798 map and the present-day map.
Zoom with the slider on the right — drag it, or use the + and − buttons for fine, steady steps without pinching.
Use the Nudge map button to temporarily shift, turn or resize the old map to match a stretch of coastline, then Snap back to the set fit.