SOIL HORIZONS
The layers of soil underfoot have developed over eras of glaciation, erosion, flooding and a thousand other circumstances. You’ve likely heard a lot about topsoil and bedrock, but what about the layers in between? 
BEDROCK
SOIL HEALTH
SOIL HEALTH SERIES
SOIL – We walk on it; we grow things in it. But do we really understand and appreciate the magnificent living ecosystem below our feet? Healthy soil is essential to all life and over the next 12 weeks we will explore soil’s many hidden secrets!
Posters of the following soil topics are included as .pdf documents at the bottom of this page.