Nice job.
Keep in mind that no place is ever huntined out. There is one old park I hunt at that seems like all the newer silver has been cleared out. I rarely find any silver Washington Quarters or silver Rosies. The old stuff is definately there...over the years I've found coins from the 1600s-present. The park was established in 1895 but there were things there prior to the park.
Not that you asked for any advice but here are a few things I've learned from hunting old parks.
1. Parks change over time. Look at the wooded areas and if the park is 100 years old but the trees look to be only 50 years old then that area was most likely fields back in the day. Where people hang out today may not be where they did 100 years ago. Look for old pictures of gathering at the park.
2. If you are hunting a grassy area and the quality of grass changes it may indicate that fill was brought in. Don't spend too much time in the fill area unless you are looking for modern clad or jewelery. One field I hunt the grass is spotty with many bear spots then you cross into an beautiful green lush lawn. I never find old stuff in the nice green lawn but the crappy area turned up the Spanish Cob in my avatar.
3. If you plan on many trips back to the same park then dig everything and clean out the trash. It may be masking deep targets.
4. If you find an old coin then focus on that area a little harder. Overlap coil swings and search from different angles. I have my park divided into areas and I can tell you what era coins I expect to find in each area depending on what timeframe that area of the park was popular to use.
5. After you hunted the park many times and it seems like the targets are getting fewer and fewer then change the coil on your machine to a smaller or larger one then start all over. You will be amazed on how a different coil will change your machine and help find coins that you missed before.
Good luck
NJ
