There was hunting allowed at the park some years ago. I was born and raised and lived in Miles for 49 years. Went on many hunting trips. Just to make sure my memory was correct I contacted the FWP, this is what they had to say:
Woodruff Park used to be owned by the BLM but has now been turned over to Custer County. We believe hunting is still allowed there but it would be best to check with the county for sure since they are the property owners now. You can reach the Custer County Commissioners at 874-3350. There is some private property that you must cross in order to get to Woodruff Park, which of course you must have permission from the landowner to do so. The landowner also has cattle on the property and a gate has been installed at the entrance to Woodruff to keep the cows out. As far as we know, the county has not locked this gate. If hunting is still allowed in the park, we don't think it would probaby be the best idea due to the cattle being in such close proximity and the relative small area of the park.
Please contact Custer County for additional information.
and the second e-mail
If it helps you further, I visited with our Information Officer and the ranger at the BLM here and they both said as far as they knew you were able to hunt in the park before. They both agreed that as far as they knew hunting is still allowed at the park, but that it ultimately was up to the county. Long story short hunting definitely WAS allowed at the park in the past.