Found 311 Outdoor CC0 textures in library

Aerial Asphalt 01
Aerial Beach 01
Aerial Beach 02
Aerial Beach 03
Aerial Grass Rock
Aerial Ground Rock
Aerial Mud 1
Aerial Rocks 01
Aerial Rocks 02
Aerial Rocks 04
Aerial Sand
Aerial Wood Snips
Asphalt 01
Asphalt 02
Asphalt 03
Asphalt Floor
Asphalt Snow
Bark Brown 01
Bark Brown 02
Bark Willow
Bark Willow 02
Baseball Playground
Beam Wall 01
Beige Wall 001
Beige Wall 002
Blue Floor Tiles 01
Brick 4
Brick Floor
Brick Floor 002
Brick Floor 003
Brick Moss 001
Brick Wall 001
Brick Wall 003
Brick Wall 006
Brick Wall 04
Broken Wall
Brown Brick 02
Brown Mud
Brown Mud 02
Brown Mud 03
Brown Mud Dry
Brown Mud Leaves 01
Brown Mud Rocks 01
Brown Planks 03
Brown Planks 04
Brown Planks 05
Brown Planks 07
Brown Planks 08
Brown Planks 09
Brushed Concrete 03
Burned Ground 01
Castle Brick 01
Castle Brick 02 Red
Castle Brick 02 White
Castle Brick 07
Castle Brick Broken 06
Castle Wall Slates
Castle Wall Variation
Ceramic Roof 01
Church Bricks 02