Published by: UBD Gregory’s
corresponding to standard time zones and international shortwave radio prefixes
Comprehensive Urban DetailBuilding footprints
This isn’t just wall art—it’s an 18th/19th-century dialogue between discovery and measurement
🌆 Greater Philadelphia Region – Scale 1:125
4465 Elgee 1:100k Topographic Map Sydney Published by: UBD Gregory’sAt a scale of 1: 100,000, 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0. 5 degrees longitude by 0. 5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. Topographic maps show contours, spot elevations, streams, roads, buildings, place names, vegetation and administrative boundaries. They are used by emergency services, environmental