In the past, a mill operated along Breg Creek, but it was abandoned by the mid-20th century. Until 1998, Praproče pri Grosupljem was a hamlet of Spodnje Blato.
Mass graves
Spodnje Blato is the site of two known mass graves from the period after the Second World War. Both of them lie east of the settlement and they contain the remains of Slovene civilians and former Home Guardsoldiers that had been granted amnesty and released from prisons, but were murdered on their way home in August 1945. The victims were from the vicinity of Grosuplje and Višnja Gora. The Stehan 1 Mass Grave lies on the left side of the old road toVišnja Gora before the road that turns off to the local dump. The Stehan 2 Mass Grave is west of the first site, about south of the abandoned local dump.