Die Partnachklamm in Bayern (Bavaria), Southern Germany, is a deep gorge that has been incised by a mountain stream near Garmisch-Partenkirchen. It’s 700 m long and, partly, over 80 m deep. It was designated a natural monument in 1912. The gorge was already being used by local peoples in the 18th century who, at risk of their lives, transported firewood from the Reintal valley on timber rafts to Partenkirchen. From the 1700s to the 1960s the river and gorge were used as a rafting stream. In spring, the logs, marked with an owner’s symbol, were thrown into the stream and carried by meltwaters down the valley. The freeing of jammed logs required much daring and many men were lost in carrying out this task. Since 1912 the gorge has been developed for tourists and can be visited year round. An entry fee is charged in summer from 8 am-6 pm and in winter from 9 am-5 pm. Outside these times the gorge may be visited at individual risk. During snowmelt in spring, it may be closed for a short period as the water rises too high.