The official site of Hardrock Hundred Mile Endurance Run is chicagomarathon.com . The venue for Hardrock Hundred Mile Endurance Run was Silverton, Colorado,Olympic Indoor Hall (artistic and trampoline) . 6 events were there in Hardrock Hundred Mile Endurance Run . 1884; 135 years ago (1884) is when Hardrock Hundred Mile Endurance Run was established  . 2 August was when it was held
Hardrock Hundred Mile Endurance Run will celebrate it's  Sesquicentennial jubilee on 2034