ECs in the PHYSIOGRAPHY group
ECC_ABYSS
ECC_ACCESS_ZONE
ECC_ALKALI_FLAT
ECC_ALLUVIAL_FAN
ECC_BACKSHORE_PRECISE
ECC_BAMBOO_TRACT
ECC_BARREN_GROUND
ECC_BATHYMETRIC_PROVINCE
ECC_BEACH
ECC_BEACH_PROFILE
ECC_BEACH_ZONE
ECC_BEDROCK
ECC_BOG
ECC_BOULDER_FIELD
ECC_BREAK_LINE
ECC_BRUSH_LAND
ECC_BUILT_UP_TERRAIN
ECC_BUTTE
ECC_CAMBER
ECC_CANYON
ECC_CAVE
ECC_CAVE_NEXUS
ECC_CAY
ECC_CLIFF
ECC_CLIFF_BOTTOMLINE
ECC_CLIFF_TOPLINE
ECC_COAST
ECC_CONTACT_ZONE
ECC_CREVASSE
ECC_CREVICE
ECC_DESERT_REGION
ECC_DISTURBED_SOIL
ECC_DRY_LAKE
ECC_DRY_LAND
ECC_EMBANKMENT
ECC_ENGINEER_DITCH
ECC_ENGINEER_TRENCH
ECC_ESCARPMENT
ECC_ESKER
ECC_EXCAVATION
ECC_EXPOSED_BEDROCK
ECC_EXTRACTION_MINE
ECC_FIGHTING_POSITION
ECC_FILLED_TERRAIN
ECC_FLOOD_BASIN
ECC_FORESHORE
ECC_FORESHORE_PRECISE
ECC_FOREST
ECC_FOREST_PRESERVE
ECC_FROZEN_PRECIPITATION_FIELD
ECC_GEOGRAPHIC_BASIN
ECC_GEOLOGIC_FAULT
ECC_GLADE
ECC_GORGE
ECC_GRASS_LAND
ECC_GROUND_SURFACE_ELEMENT
ECC_GULLY
ECC_HILL
ECC_HUMMOCK
ECC_HYDROLOGIC_OBJECT
ECC_ICE_FIELD
ECC_ICE_PEAK
ECC_INLAND_SHORELINE
ECC_INUNDATED_LAND
ECC_IRRIGATION_DITCH
ECC_ISLAND
ECC_ISTHMUS
ECC_JUNGLE
ECC_KELP_BED
ECC_LAND
ECC_LAND_FLOODING_PERIODICALLY
ECC_LANDSLIDE
ECC_LEVEE
ECC_MARSH
ECC_MESA
ECC_MILITARY_TRENCH
ECC_MIXED_VEGETATION_LAND
ECC_MORAINE
ECC_MOUNTAIN
ECC_MOUNTAIN_PASS
ECC_MOUNTAINOUS_REGION
ECC_NAMED_LAND_TRACT
ECC_NATIONAL_PARK
ECC_NATURE_RESERVE
ECC_NEARSHORE_PRECISE
ECC_OASIS
ECC_OCEAN_BASIN
ECC_OCEAN_FLOOR
ECC_OCEAN_FLOOR_TOPOGRAPHIC_CONFIGURATION
ECC_PARAPET
ECC_PERMAFROST
ECC_PERMANENT_SNOWFIELD
ECC_PINGO
ECC_PLANETARY_SURFACE
ECC_PLATEAU
ECC_POLAR_CAP
ECC_POTENTIAL_LANDSLIDE_REGION
ECC_PROMONTORY
ECC_QUARRY
ECC_RIDGE
ECC_RIDGE_LINE
ECC_RIVER_BANK
ECC_ROCK
ECC_ROCKY_LANDMARK
ECC_ROCKY_OUTCROP
ECC_SABKHA
ECC_SALT_PAN
ECC_SAND
ECC_SAND_BAR
ECC_SAND_DUNE
ECC_SAND_DUNE_REGION
ECC_SCRUB_LAND
ECC_SEAMOUNT
ECC_SHEAR_WALL
ECC_SHORE
ECC_SLOPE_REGION
ECC_SNOWFIELD
ECC_SOIL
ECC_STONE
ECC_SUBMERGED_ROCK_FORMATION
ECC_SUGAR_CANE
ECC_SURFACE_FISSURE
ECC_SWAMP
ECC_TERRAIN
ECC_TERRAIN_CHANNEL
ECC_TERRAIN_CRATER
ECC_TERRAIN_CUT
ECC_TERRAIN_DEPRESSION
ECC_TERRAIN_ELEVATION_PROPERTY_SET
ECC_TERRAIN_FILL
ECC_TERRAIN_OBSTACLE
ECC_TERRAIN_PIT
ECC_TERRAIN_PLAIN
ECC_TERRAIN_STRIP
ECC_TERRAIN_SURFACE_REGION
ECC_TRACT
ECC_TREE_BLOWDOWN
ECC_TREED_TRACT
ECC_TRENCH
ECC_TUNDRA
ECC_UNDERMINED_LAND
ECC_UNVEGETATED_LAND
ECC_VALLEY_BOTTOM_LINE
ECC_VALLEY_REGION
ECC_VEGETATED_SATURATED_LAND
ECC_VOLCANIC_DYKE
ECC_VOLCANO
ECC_WADI
ECC_WADI_NEXUS
ECC_WATERBODY_BANK
ECC_WATERBODY_BASIN
ECC_WATERBODY_FLOOR
ECC_WATERBODY_FLOOR_CANYON
ECC_WATERBODY_FLOOR_PINNACLE
ECC_WATERBODY_FLOOR_PROVINCE
ECC_WATERBODY_FLOOR_REGION
ECC_WATERBODY_FLOOR_RIDGE
ECC_WATERBODY_FLOOR_TOPOGRAPHIC_CONFIGURATION
ECC_WATERBODY_FLOOR_TRENCH
ECC_WEAPON_FIGHTING_POSITION
ECC_WELL
ECC_WETLAND
ECC_WOODY_GRASS_LAND