Words to Describe backfilled

Things backfilled often describes ("backfilled ________")

• tunnel
• cells
• workings
• deposits
• zone
• soils
• structures
• walls
• trench
• material
• canals
• excavation
• ditches
• stope
• earth
• sections
• hole
• ditch
• tunnels
• soil
• foundations
• slopes
• quarry
• wall
• stopes
• quarries
• holes
• layers
• pits
• area
• shaft
• trenches
• cellar
• areas
• grave
• pit
• space