Trenched refers to something that is deeply sunk into the earth or dug deeply into the ground.
"Trenched" Examples
Verb: trenches
The fox was able to dig its own trench to escape from the predators by moving swiftly and strategically. The excavation crew will follow the plan and construct a trench to lay the pipes beneath the road. The strict border control has resulted in the area looking like a battle-torn trench system untouched for decades. Ducks and children alike love to waddle through the wet, messy sand in the trench where excavations have taken place. The caterpillar made its way into the trench her mother had tucked under the leaf for protection in the park after a long and rewarding day of eating leaves from the same maple leaf tree across the way.