there is a viewing point on the "rotestein" with information boards about the reservoir and the surrounding area. "rotestein" means "red rock", the name being derived from the colour of the diabase material of which it is composed. before the reservoir was created, these rocks dominated the old route between hasselfelde and rübeland where it crossed the rappbode on a stone bridge that is now drowned by the reservoir. the "rotestein" is checkpoint 54 in the harzer wandernadel hiking network. it may be reached on foot from the car park on the b 81, around 800 metres se.