Watershed

American cowboy

Side view illustration of cowboy on horse

Antilocapra americana (Pronghorn deer)

Side view of male pronghorn

Coastline 3D: bay with barrier island

Illustration of a bay with barrier island

Coastline 3D: comparison high vs low marsh

Comparison of a coastline with high vs low marsh

Coastline 3D: mountains to open ocean

Illustration of a 3D coastline showing mountains to open ocean

Coastline 3D: mountains to open ocean with upwelling

Illustration of a 3D coastline with mountains to open ocean and upwelling

Coastline 3D: mountains, dam, island

Coastline 3D: mountains, dam, island

Coastline 3D: watershed and modified coastline

Illustration of river base with watershed and modified coastline

Empidonax traillii extimus (Southwestern Willow Flycatcher)

Southwestern Willow Flycatcher flying

Estuary 2D: rocky catchment

Illustration of estuary base with rocky catchment and salt wedge

Fiji: Lami Town

Cross-section of Lami Town in Fiji

Inputs: sewage

A downward pointing yellow arrow labeled "sewage" represents the excess nutrients and pollution from human waste systems that runoff into the watershed

Juniperus monosperma (One-seed Juniper)

Shrub-like Juniper tree

Man tubing

Man tubing on river

Populus deltoides (Eastern Cottonwood)

Cottonwood tree

Reef 3D: volcanic island with barrier reef 2

Illustration of a volcanic island with barrier reef

Reef 3D: volcanic islands with reefs

Illustration of volcanic islands with reefs

River 3D: watershed with mountains

Illustration of river base watershed with mountains

River 3D: watershed with mountains and water table

River 3D: watershed with mountains and water table

Sedona Red Rocks

Red rock formation near Sedona, Arizona

USA MD VA: Chincoteague Bay 3D watershed

Illustration map of Chincoteague Bay watershed in Maryland and Virginia, USA

USA MD VA: Chincoteague Bay watershed

Illustration map of Chincoteague Bay watershed in Maryland and Virginia, USA

USA MD: Assawoman Bay 3D watershed

Illustration map of Assawoman Bay watershed in Maryland, USA

USA MD: Assawoman Bay 3D watershed (detailed)

Detailed illustration of Assawoman Bay watershed in Maryland, USA

USA MD: Assawoman Bay watershed

Illustration map of Assawoman Bay watershed in Maryland, USA

USA MD: Assawoman Bay watershed locator map

Illustration locator map of Assawoman Bay watershed in Maryland, USA

USA MD: Chester River

Illustration map of Chester River in Maryland, USA

USA MD: Choptank River 1

Illustration map of Choptank River in Maryland, USA

USA MD: Choptank River 2

Illustration map of Choptank River in Maryland, USA

USA MD: Choptank River watershed locator map

Illustration locator map of Choptank River watershed in Maryland, USA

USA MD: Isle of Wight 3D watershed

Illustration map of Isle of Wight watershed in Maryland, USA

USA MD: Isle of Wight watershed

Illustration map of Isle of Wight watershed in Maryland, USA

USA MD: Isle of Wight watershed locator map

Illustration locator map of Isle of Wight watershed in Maryland, USA

USA MD: Lower Eastern Shore watershed locator map

Illustration locator map of Lower Eastern Shore watershed in Maryland, USA

USA MD: Lower Western Shore watershed locator map

Illustration locator map of Lower Western Shore watershed in Maryland, USA

USA MD: Newport Bay 3D watershed

Illustration map of Newport Bay watershed in Maryland, USA

USA MD: Newport Bay watershed

Illustration map of Newport Bay watershed in Maryland, USA

USA MD: Newport Bay watershed locator map

Illustration locator map of Newport Bay watershed in Maryland, USA

USA MD: Patapsco and Back Rivers watershed locator map

Illustration locator map of Patapsco and Back Rivers watershed in Maryland, USA

USA MD: Patuxent River

Illustration map of Patuxent River in Maryland, USA