Related Clues:
- Aerobics exercise class for this area's level one
- Eurasian ecoregion
- Central Asian plain
- Unrestricted hard nuts head up Arctic region
- Sound process identifying Russian plain
- Extensive grassland of E Europe and Central Asia
- Walk to gym in smooth flat land
- It's plain sweetheart's rejected exercise
- Prairie, technically
- 61 Across' colder cousin
- Permafrost locale
- Large cask on brewer's cart, last of many to be ditched in wasteland
- Grassy plain in central Europe or Asia
- Treeless plain of eastern Russia and Siberia
- Largely treeless Arctic region