Original: The volcano is part of the Ruiz Tolima volcanic massif ( or Cordillera Central ) , a group of five ice-capped volcanoes which includes the Tolima , Santa Isabel , Quindio and Machin volcanoes .
Simplified: The volcano is part of the Ruiz-Tolima volcanic massif ( or Cordillera Central ) , a group of five different icy stratovolcanoes .