The staffed refuges and the clubs that run them. 3 guides.

Alpenverein wardens have staffed huts since 1862A staffed hut has a warden, a bunk room, a booking system and a code of conduct that predates the lifts by a century. The Alpenverein clubs built the network and still run most of it.
Hüttenwirt staffing turned Alpine huts into timed infrastructureHuts exist to make multi-day movement possible, which is why they are placed by walking time rather than by view.
Two Alpine clubs split but never divided the hutsThe Austrian and German alpine clubs maintain huts and waymarked paths across both countries under a shared arrangement.