| 31. | During the Last Glacial Maximum of the Llanquihue glaciation the lake basin was wholly occupied by a glacier.
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| 32. | The last maximum extent of glaciation, known as the Last Glacial Maximum, was approximately 18, 000 years ago.
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| 33. | Despite glacier advances much of the area west of Llanquihue Lake was still ice-free during the Last Glacial Maximum.
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| 34. | This occurred during the last glacial maximum ( 18, 000 yrs ago ), when the basin was completely isolated.
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| 35. | In the northern hemisphere, the last glacial maximum reached about 40? N in North America, covering the Great Lakes.
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| 36. | Prior to the Last Glacial Maximum, climates in eastern Siberia fluctuated between conditions approximating present day conditions and colder periods.
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| 37. | The final phase of glacial activity probably occurred during the Last Glacial Maximum, between 22, 000 and 20, 000 ago.
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| 38. | The Last Glacial Maximum, the maximum extent of glaciation within the last glacial period, was approximately 22, 000 years ago.
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| 39. | The ice sheets at the last glacial maximum were so massive that global sea level fell by about 120 metres.
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| 40. | The time from Britain's first inhabitation until the last glacial maximum is known as the Old Stone Age, or Palaeolithic.
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