Move your cursor to dig — touch and drag on mobile
Every band of sediment records a chapter of the planet, from drowned seabeds to drifting ash, pressed flat across millions of years.
Our interactive maps let you peel back the crust and trace how stone, fossil and deep time shaped the ground you are standing on.
Strata turns core samples into something you can actually read. Pick a site, drag down through the column and watch the climate, the sea level and the life of that moment redraw themselves around you.
Each guide is written by someone who has walked the ground: what to look for, where the good exposures are, and which roadside cutting is worth stopping the car for.
Point at any mapped location and Strata assembles a column from public survey data, our own core samples and the notes of everyone who has walked it before you.
Tap the map, or type a postcode. Coverage is deepest in the eleven mapped regions.
Drag downward and the column opens layer by layer, with depth and age in the margin.
Every band carries the climate, sea level and life of its time, written in plain language.
Guides download for offline use, because signal disappears exactly where the rock gets good.
Free for anyone curious. Paid for people who take it into the field.