To get to the base of the mountain we had an hour's schlep across a boggy plain.
From the theaustralian.com.au
And, significantly, that five-furlong affair was fought out in boggy conditions.
From the thisisbristol.co.uk
The boggy slopes are home to unusual plant species such as the parasitic Sundew.
From the en.wikipedia.org
Peat retains its carbon only when kept in its natural damp, boggy condition.
From the infowars.com
The river banks mostly consist of sand, podsol, gleysols, peat and boggy peat soils.
From the en.wikipedia.org
Bog-spruce woods are found around the raised bogs on marshy and boggy soils.
From the en.wikipedia.org
On day one, we ramble across boggy grassland aiming for the nearest hills.
From the guardian.co.uk
Others struggled to wheel shopping trolleys full of alcohol through the boggy ground.
From the dailymail.co.uk
Frenchmans Cap enthusiasts talk fondly of the Loddon Plain's boggy barrier.
From the stuff.co.nz
More examples
(of soil) soft and watery; "the ground was boggy under foot"; "a marshy coastline"; "miry roads"; "wet mucky lowland"; "muddy barnyard"; "quaggy terrain"; "the sloughy edge of the pond"; "swampy bayous"
A bog, quagmire or mire is a wetland type that accumulates acidic peat, a deposit of dead plant material--usually mosses, but also lichens in Arctic climates.
Having the qualities of a bog; i.e. dank, squishy, muddy, and full of water and rotting vegetation
(bogginess) A tissue texture abnormality characterized principally by a palpable sense of sponginess in the tissue, interpreted as resulting from congestion due to increased fluid content.
(Bogginess) The softening of the uterus due to inadequate contraction of the muscle tissue.