Back in 1968, on the occasion of the 850th anniversary of the municipality of St. Märgen, the Rankmühle was extensively renovated. On the occasion of the 900th anniversary of the village in 2018, an interested group of helpers came together to take on this high-ranking cultural asset.
This group of helpers is supported by a support association founded on 21 April 2018 by 35 founding members, which bears the name Förderverein Rankmühle St. Märgen e.V.. There are now over 130 members.