Don't know when you are going but be aware that that is a busy camping area. Mineral is popular. There is an actual campground or two or three along the road to it but just know it is busy especially weekends. A bit closer than going up past Silverton is Molas Lake and Little Molas Lake about as far south of Silverton as Mineral is north. Both are nice, both have lakes. Molas lake actually has a little store as well and is reservable, town of Silverton owns it
http://www.molaslake.com/reservations.html
I can say on weekends midday when I have been through there have been no empty spots, weekdays may not be as big an issue. Dont know how old the kids are but one of the best hikes around there is ice lakes make sure and go to the upper ice lake at least, there are other lakes up there as well iirc Island lake and Fuller lake are within a mile or so of upper Ice lake
http://www.rockymountainhikingtrails.com/ice-lakes.htm
