Years until the cuttable high-value old growth is gone, per Timber Supply Area. Orange & teal are the remaining old-growth stands. Click a TSA or TFL for its numbers.
≥300 m³/ha · big-tree old growth
200–300 m³/ha
100–200 m³/ha · low-volume old growth
Primary forest · never logged, any age
m³/ha = cubic metres of wood per hectare (a 100 m × 100 m square). It's a stand-in for tree size and density: ~100 = sparse, small interior trees; 300+ = a big, dense stand; 500+ = towering coastal old growth.