Last seen in:
- The Guardian - Quick crossword No 16,797 - Mar 7 2024
- L.A. Times Daily - May 4 2020
- The Washington Post - May 4 2020
- L.A. Times Daily - Jul 7 2016
- USA Today - Jan 16 2015
- L.A. Times Daily - Oct 29 2011
- Irish Times (Crosaire) - May 15 2007
- Irish Times (Crosaire) - Sep 19 2006
- New York Times - Feb 5 2006
- Irish Times (Crosaire) - Apr 29 2002
Related Clues:
- Time of glaciers
- Baptisms of fire
- Cooling-off period
- Daily weather statistics
- Glacial period
- Frigid period
- Pleistocene Epoch
- Deep-freeze periods
- Time period that shaped the Great Lakes
- Time of the mammoths
- Geological cold spell
- Trying experiences
- The Pleistocene Epoch, familiarly
- Big chill of long ago
- Global warming threat, some say