I have created several airfields using FSSC 1.5. I thought everything was fine until I noticed the airfield was at 249 feet when I has set the base altitude at 217 feet. I had made the runway invisible so I tried making it visible. This appeared to correct the problem until I landed outside the airfield and noticed the altitude was 249 feet. As I taxied on to the airfield, I dropped into the 32 foot hole where my runway was located. The terrain is at 217 feet without my scenery loaded. I do have a flatten area surrounding the airfield. Every one of the airfields have the same problem but not at the same altitude. Any ideas? I really need to get this fixed. NEVER MIND. Really stupid mistake. I had copied the airports and changed everything except the flatten altitude.