On 27 July 1564, Guckheim, along with the parishes of Salz, Meudt, Nentershausen and Hundsangen was ceded to the Electorate of Trier in the Treaty of Diez, and thereby also ended up in the Amt of Montabaur.
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Lying roughly 35 km east of Koblenz, halfway between the agglomerations of Frankfurt am Main and Cologne, Guckheim has at its disposal a good transport infrastructure with the new InterCityExpress stations in Montabaur and Limburg an der Lahn, the A 3 (Cologne–Frankfurt; interchange at Diez/Nentershausen) and Bundesstraßen 8 and 255, all found nearby.
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About 750 m from Guckheim, an 11-km-long, popular hiking trail leads from the direction of Wallmerod to the former railway area in Westerburg.