"Bogland" is the final poem in Seamus Heaney's second collection, Door into the Dark (1969). It describes the peat bogs (wetlands composed of dead plant matter) that cover a large fraction of Ireland's landscape. Thousands of years' worth of animals and artifacts lie buried in this slippery terrain, which, as the speaker notes, is more cramped than the wild landscapes of other countries. As a result, Ireland's "pioneers" dig down into their country's history rather than expanding outward. Yet Irish history and identity, the poem suggests, are as multi-layered, shifting, and unstable as the land itself.