Family vaca was in South Dakota this year. In Hill City I spotted this D-500 (at least I think its a 500) parked in the weeds. Tabs were good through 2016 so I think it gets used, but maybe not often. Looked like there was some construction equipment around near the truck, so they are probably the owners. I wrote down their phone number; I'd like to ask them about the truck but haven't called yet. Always love the history of these things. I used to have a 61 D-500 dumptruck but the cab was completely shot. Ended up using it for parts. My kids had to be in the pics