Related Clues:

• They're 'slippery' in some arguments
• Math class calculations
• As Merton's type does in part, Hislop especially
• Skiing surfaces
• Hit the ___ (go skiing)
• Downward inclines for skiers
• Places to ski
• Surfaces for skiing
• Skiing areas
• They can be slippery
• Locales at Snowbird and Alta
• Son makes big strides skiing here