We also stayed at the Broken Hill Tourist Park. As Geoff and Bev said the staff are excellent. The manager even parked my van for me. Thoroughly recommend it.
Cheers,
David.
Broken Hill Tourist Park is the one we use. Most of their sites are covered with tan bark chips, which I think is a much better option than gravel - I hate small bits of gravel under foot, inside. Their en-suite sites are quite large.
I used to live in Broken Hill so have not stayed at the caravan parks however a lot of people speak well of Penrose Park at Silverton just 20 minutes from Broken Hill.