Río Seco to the Roman quarries: Pilar's dry river reaches the sea

Río Seco is a landscape lesson written in apparent contradiction: a dry river that has cut a surprisingly deep corridor through the southern Alicante plain. The established route links Pinar de Campoverde with the Mil Palmeras coast, where regular cuts in the shoreline rock preserve the trace of ancient quarrying.

Why it matters

Flash water, not a permanent stream, shaped the rambla's walls and carried sediment toward the Mediterranean. Near the coast, extraction marks run along roughly sixty metres of calcarenite. Local interpretation dates activity to the Roman period and connects the stone with building, grinding and the road network around the stopping place generally identified as Thiar on the Via Augusta.

Plan the visit

The full linear route is about ten kilometres, so plan transport or a return rather than assuming a short loop. A shorter coastal visit can join Río Seco's mouth, the quarry surface and the coves between Mil Palmeras and Torre de la Horadada. Quarry cuts can be slippery when wet and are archaeological evidence, not steps carved for bathers.

• Avoid the rambla during or after heavy rain and respect closure notices.
• Carry water and shade protection; most of the inland channel is exposed.
• Wear shoes that grip loose gravel and wet coastal rock.
• Do not remove stone, enlarge cuts or confuse modern erosion with quarry marks.

Connect the story

Use the Pilar de la Horadada guide to follow the story inland to the agricultural Campo, tower and museum collections.

Sources

Written in September 2026 from Pilar Tourist Info's official visitor guide to Río Seco and the Roman quarries and the municipal Gratiniano Baches museum record.

Rambla conditions and coastal access can change quickly. Check weather, local warnings and the current protected-site guidance before setting out.