03-Nov-2025 Day 3: Polygons
hashtag#30DayMapChallenge 2025 Topi Tjukanov
Theme: Polygons
North Sentinel Island
North Sentinel Island is one of the Andaman Islands, an Indian archipelago in the Bay of Bengal which also includes South Sentinel Island. A protected area of India, it is home to the Sentinelese, an indigenous tribe in voluntary isolation who have defended—often with force—their protected isolation from the outside world. The island is about eight kilometres (five miles) long and seven kilometres (4+1⁄2 miles) wide, and its area is approximately 60 square kilometres (23 sq mi).
Source: Wikipedia
Data Integration using hashtagFME from Safe Software
Visualization generated using hashtagFME from Safe Software and hashtagQGIS
Data Sources:
Map data OpenStreetMap © OpenStreetMap contributors
Elevation
NASA - National Aeronautics and Space Administration Shuttle Radar Topography Mission (SRTM) (2013)
Contour polygons derived from SRTM data, NASA
Made with Natural Earth
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