Try Mueller State Park just outside of Divide, Colorado. Sites #1 through #5 are the best if you want a little open meadow area. The rest of the sites are pretty heavily wooded. Lots of trails and walk-in only lakes to fish.
As far as old mining towns go, Cripple Creek and Victor are just a few miles south of Mueller.
The Florissant Fossil Beds and Monument are also fairly close by.
There is also a Wolf Reserve just outside of Divide that gives tours. Great place if you have an interest.
And if you are just looking to have a good old fashioned country meal with a shake, try Mildred's Cafe in Cascade.