Find a library that has a set of the OR's (official records) of the Civil War. Now go through them looking for information on troop movements in your area. Also read books on the historys of the counties in which you want to search. I have found this to be a great way to find camps that have no mention in the OR's. Also a great thing to have is the Official Military Atlas of the Civil War. If you find reference to a camp that gives you location information (ex. "we camped at the mouth of Duck Creek"), get topographical maps of the area and look for terrain there that would be suitable for a camp. Typically slightly elevated terrain that would allow rain to flow off, usually in close proximity to a road existing in that time period, and also has close access to water. There are still untouched camps out there. I found a Union camp several years ago that took me a year of research and hunting for, but when I finally walked into it, it was ON! I have spent the last two months doing the same research I wrote about above and as soon as winter breaks I have about 6 camp site to locate. Do your research and you will likely be successful. Good luck!