The iron mine is a location found in the far North East section of the map. Although the road to the mine has a closed gate, the player can drive around it.
A pickaxe can be found near the outhouse building on the mining site.
Raw iron nodes can be found protruding from the hillside, and can be removed using the pickaxe. Some iron nodes are covered with a chunk of dirt which first needs to be broken to expose the node. Nodes will respawn after rainy weather.
Iron ore can be sold at the Forge by loading it into the Forge's iron dumpster and interacting with the scale.