Located halfway up the western slope of the Pozo de las Mujeres Muertas mountain pass, Seroiro is a westward-facing cattle ranching village that receives pleasant midday and afternoon sun. Seroiro is right at the rest and descent area we encountered during the climb. If you want to replenish your water, it's an ideal spot. From there, heading toward Cangas del Narcea, there are many kilometers without an official water source, although there is an alternative to visiting the crystal-clear waters of the Coto River.