 La Alberca, which translates to "the pool", was once an abundant lake that just over 40 years ago was filled with fresh water, but due to human activity has now dried up and been populated with cacti and shrubs.One of the biggest factors for the current state of these now dried crater lakes is the over extraction of groundwater for both water supply and irrigation.The government has banned groundwater extraction and they are making various efforts to conserve the condition of these seven craters and prevent further damage.