3 adjectives to describe backlog

The charred backlog still smoldered, its sap hissed and bubbled at each end.

The high windows flickered, and there was not a sound in the house except the low murmur or crackle of the glowing backlog, until the door-latch clanked, and the door flew wide and was slammed shut again.

Fortunately quite near at hand they discovered several dead poplars, the best fuel in the world for a camp-fire, and by the time the venison and coffee were ready they had collected a huge pile of this, together with several good-sized backlogs.

3 adjectives to describe  backlog