A nifty place for the Lucky Silver Mine, Shaft #1:
Then, there's the Water Tank/Sand House at Marmaros:
A rough farm road leads off-layout but connects to the vehicle access for the Notch Junction Tower (and also occasionally provides an escape route for errant horses). In the background, Marmaros Tower (MT) commands the switch joining the town/mine loop with the hill line leading down to Notch:
Then, of course, there is the Notch Junction Tower (NO) protecting the Notch yard lead: