| Direct Evidences | tension crack, scarp | Soil Creep Evidences |
| Indirect Evidences | structural deformation, abnormal tree growth, underground water release |
| Topography | gradual hill land, hill land, mountain land | Geomorphic Characteristics |
| Flat Horizontal | mixed, concaved, convexed, rectilineal |
| Longitudinal Section Vertical | mixed, concaved, convexed, rectilineal |
| Slope Angle | >30°, 20~30° 10~20°, <10° |
| Composition | sedimentary rock, metamorphic rock, igneous rock | Geologic Characteristics |
| Rock Weathering | weathered rock, soft rock, moderate rock, hard rock |
| Discontinuity and Slope Direction | face of slope, vertical, horizontal. reverse |
| Discrete Surface Spacing | very dense, dense, moderate, sparse |
| Soil Properties at B Floor | clay soil, sandy loam, sandy soil | Soil Characteristics |
| Soil Depth to B Floor | >90 cm, 60~90 cm, 30~60 cm, <30 cm |
| Soil Moisture | humid, semi-humid, moderate, semi-dry, dry |
| Talus | absence/presence |