Assertion: geyser's activity | /r/HasProperty | located within three discrete areas
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text: Stronger geothermal activity is located within three discrete areas covering a total of 10 square kilometres (3.9 sq mi) surface, and includes boiling water fountains, hot springs, geysers, mudpots, mud volcanoes and sinter terraces; further, chimneys of extinct geysers have been noted.