Finding ways

Conventional soil layer

River area

Lake area

Wells

Drainage

channel

Sea area

Garbage

Dump

Dunghill

Roof

Door

crack

Roots

Cavities

Strange

rocks

Seeing picking

43

35

8

-

2

1

1

1

1

1

-

Seeing digging

11

4

-

-

1

-

-

-

-

-

-

-

-

Tramping digging

14

6

-

-

-

-

-

-

-

-

-

-

-

Digging soil

70

6

1

1

2

2

3

1

-

-

-

-

-

Dragging

-

-

3

1

1

1

-

-

-

-

-

-

-

Soaking

-

-

-

-

-

-

-

-

-

-

-

-

1