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Activity for “Under the Arctic: Digging in to Permafrost”
Map reflects approximately 636 visits and 501 visitors from 135 locations (shown as 29 states). 
Based on periodically updated Google Analytics data. This is intended to show usage trends but may not capture all activity from every visitor.
Color intensity indicates activity level, from: Low High
Washington, DC
Visits: 15
Users: 11
Washington, DC is not visible on this map, due to it's small geographic size.