The Dwarven iron mine is a mine that can be found in the southern section of the Dwarven mines, located beneath Falador. Reaching it has no requirements whatsoever.
The mine only contains iron rocks making it ideal for players with a lower mining level. Players who mine iron here, can easily deposit their ores in the nearby Falador east bank, which is just up the stairs and then a short walk west.
The best way to get there is by using the teleport option on the Dungeoneering cape and teleporting to the Dwarven mine resource dungeon; there is a Bank deposit box inside. Alternatively, players can teleport to the Falador lodestone and run south from there to the building next to the party room.