Related Clues:

• Cherries' centers
• Trenches
• Peach centers
• Places to refuel
• Collieries
• Depressing place, with "the"
• Cherry centers
• They may be bottomless
• Gravel and sand sources
• Glass flaws
• Absolute worst (with ''the'')
• Mines
• Just awful, with "the"
• Refueling places
• Trading spots