Aar The Aar (Lahn) has its source in the stadtteil Orlen 500 meters from the ruins of Roman Castle Zugmantel and the Bundesstraße 417 in the Orlen part of Taunusstein. Limes The north of Taunusstein is crossed by the Upper Germanic Limes, a line of frontier forts begun in AD 86 by the Romans which stretched from near Bonn on the Rhine to near Regensburg on the Danube. It divided the Roman Empire from the unconquered Germanic tribes. Close to Orlen and the Bundesstraße 417 is a replica of a Limes watchtower, right beside the remains of the castrum Zugmantel. The Upper-Germanic-Rhaetian Limes (the Limes Germanicus) is a UNESCO World Heritage Site. Coat of arms The town's arms might be described thus: Azure a lion rampant Or armed and langued gules, in his forepaws an escutcheon, argent a cross gules. The golden lion recalls the centuries-long overlordship of the Counts and Princes of Nassau, and at the same time draws on the old arms borne by the Nassau Amt seat of Wehen and the communities of Hahn and Seitzenhahn, all of which were charged with a lion or a lion's head. The cross is an attribute of Saint Ferrutius, the Bleidenstadt Monastery's patron saint. This monastery was founded as early as the 8th century and earned much credit for bringing Christianity and culture into the region on the upper Aar. The former community of Bleidenstadt bore this cross in its former coat of arms. The official blazon reads: Economy and infrastructure Transport There are two railway stations (in Hahn and Bleidenstadt) which lie on the stretch of the Aartalbahn running through Taunusstein, however since 1983 the line was only used for steam tourist trips run by the Nassauische Touristik-Bahn (NTB). But since a truck damaged a bridge on the line in Wiesbaden-Dotzheim on 20 November 2009 then the line had to be closed completely. Despite promises from the city council of Wiesbaden money to replace the bridge has not been forthcoming, and the NTB are themselves facing financial problems due to not being able to run any trains on the line. In 1998 it was proposed that the line be reopened to form part of a new light rail line into Wiesbaden Stadtbahn, this was however dropped in 2001. Although some plans for such a line have been revived since the 2011 election, these do not currently involve this section