Posto de Controlo is one of the useful orientation points in the northern-central part of Iona, near Espinheira and the low hills around Golo and Cacolo. In a park this remote, ranger infrastructure matters: it marks the difference between empty map space and a managed protected area.
Travellers should treat control posts as practical places, not attractions. Check in where required, ask about track conditions, and listen carefully to local advice. What was passable last season may not be passable now.