Coalseam Conservation Park

Coalseam takes its name from a seam of low-grade coal exposed in the banks of the Irwin River, discovered in 1846 and the first coal found in Western Australia, though it was never worked commercially. The park's reputation now rests on flowers: in a good season, from late July into September, everlasting daisies cover the valley floor and slopes in dense sheets of white, pink and yellow, thick enough to change the colour of the landscape entirely. Marine fossils are visible in the river cliffs, laid down when this was seabed some 250 million years ago. Lookouts overlook the valley, and there are two small campgrounds and picnic areas along the river.

What you actually see

• The everlasting carpets - dense sheets of daisies across the valley in spring.
• The coal seam - the exposed layer in the river bank, the state's first coal find.
• The marine fossils - shells and remains in the cliffs from an ancient seabed.
• The river valley - the Irwin cutting through low hills with lookouts above.

When to go

July to September for the wildflowers, with the peak usually in August; the display depends entirely on winter rainfall and poor seasons produce little. Outside spring there is not much to see. Summer is hot and dry.

Honest expectations

Flower displays vary enormously between years and can fail. The last access road is unsealed. Facilities are basic campgrounds and toilets, and the park is a long drive from Perth for a seasonal display.

Nearby

Mingenew and Mullewa lie close; Geraldton is on the coast west.