Two places in South America contain Andean dry woodlands, the Magdalena Valley in northwestern Colombia and north of the Sechura Desert along the coastal border of Peru and Ecuador. The Magdalena Valley woodland has been heavily impacted by human settlement, but areas with woodland and woodland-succulent plants still exist along the valley bottom up to elevations of 2,800 m (9,186 ft). Above 2,800 m (9,186 ft) elevations, precipitation increases and cloud forest and paramos vegetation dominates. The Tumbes-Piura and Maranon dry woodlands occur in the Andes Mountains of northern Peru and southern Ecuador. The two woodland systems are intermixed with dry forest and scrubland depending on moisture. Precipitation increases the further north one goes in the woodlands.