St. Margrethen SG

Geography

St. Margrethen has an area, , of . Of this area, 28.3% is used for agricultural purposes, while 31.5% is forested. Of the rest of the land, 34.8% is settled (buildings or roads) and the remainder (5.4%) is non-productive (rivers or lakes). It was situated on a road along the southern coast of Lake Constance and left side of the Alpine Rhine Valley.

Most-observed species

• Indian Balsam

  Impatiens glandulifera Royle · Magnoliopsida
  11,745
• Annual Fleabane

  Erigeron annuus (L.) Pers. · Magnoliopsida
  11,307
• Butterfly-bush

  Buddleja davidii Franch. · Magnoliopsida
  4,332
• Japanese Knotweed

  Reynoutria japonica Houtt. · Magnoliopsida
  3,486
• Mallard

  Anas platyrhynchos Linnaeus, 1758 · Aves
  2,719
• Gray/Purple Heron

  Ardea cinerea Linnaeus, 1758 · Aves
  2,631
• Carrion Crow

  Corvus corone Linnaeus, 1758 · Aves
  2,619
• Early Goldenrod, Tall goldenrod, Giant goldenrod

  Solidago gigantea Aiton · Magnoliopsida
  2,616

Most recent

• M 3.7 — 2026-04-26
  4 km N of Quarten, Switzerland
• M 4.2 — 2024-06-04
  2 km NNW of Unteriberg, Switzerland
• M 3.8 — 2022-09-01
  2 km WSW of Sevelen, Switzerland
• M 4 — 2020-10-25
  5 km ESE of Ennenda, Switzerland
• M 3.6 — 2020-08-08
  5 km SE of Gramais, Austria
• M 3.8 — 2018-02-01
  4 km N of Innerbraz, Austria