Hunting camp is a planted pine forest so I'm with you!Well - around here, unless you have some ornamental hardwood tree that you want to donate to the campfire - its going to be pine. Usually just clear an area down to bare soil and build on that. Firebuilders only use local rocks once - ours contain moisture and will crack, split, explode if used to build a fire pit.
Start small with dry kindling - once its going throw on the bigger stuff and crack open a beer.
Besides - if I build some type of pit - it, more or less, means I will come back to that same area next time. I got 80 acres and have had bonfires in many areas all over the property.
Only hardwood is what I take with me!
I usually take a dozen or so peices of split oak to supplement the pine.