What is a Fen?

Fens are an important wetland type in the mountains of California. Fens are permanently saturated wetlands, receiving significant water and nutrients from a ground source of water. Ground water fed fens are widespread in the California mountains of the Sierra Nevada, coast range, and southern Cascades.

What is the Difference Between A Marsh, Swamp, Bog and Fen? - Ponder Weasel

Annie Proulx's new book is a history of wetland destruction : NPR

Fens vs. Bogs

Bogs and Fens

Fens in Ireland FactsheetIrish Peatland Conservation Council

Bog, Definition, Types, Ecology, Plants, Formation, Structure, & Facts

What Grows in Fens? (Types of Fen Plants) - Pond Informer

Fen - Wikipedia

Fens, bogs and peatlands: 6+ million acres of Minnesota's unsung wilderness treasure

Canadian Wetland Classification System — Wetland Policy

Difference Between A Marsh, A Swamp, A Bog, And A Fen - KnowledgeNuts