Coastal Materials
Why Sand Grains Sort Themselves Along a Beach
Why sand grains sort themselves along a beach depends on water movement and sediment supply. Learn to read bands by…
The full shoreline
All articles
Browse explanations and features on shoreline forms, coastal materials, changing conditions, habitats and the ways people use the shore.
Shoreforms
Dune Grass or Bare Sand: Two Very Different Shore Surfaces
Dune grass or bare sand reveals how wind shapes dune surfaces. Learn to read ripples, deposits and sheltered edges…
Habitats
The Making of a Salt Marsh: From Mudflat to Plant Community
Salt marsh formation begins on sheltered mudflats. Learn how tides, sediment and pioneer plants shape the habitat, and…
Tides and Weather
The Tide-Line Is Not a Permanent Boundary
The tide-line is not a permanent boundary. Learn what shore marks can reveal about water, weather and local…
Human Uses
A Quiet-Shore Sketchbook: What to Notice Without Collecting
A quiet-shore sketchbook helps you record coastal shapes, textures and patterns in place, turning a gentle walk into…
Our point of view
A coastline is never just a view.
Its shape, materials, living communities and human uses all leave clues. We follow those clues without pretending every shore works the same way.