That is wonderful as it sounds like a large tract...Sounds as though it has full seasons where you are from. (Europe) I am in Florida U.S. and we do get blackberries but the seasons are sometimes abundant and other years not much due to drought or too much rain. It seems conditions have to be just right...or not much is given...but when it is we fill up our bucket. You jam looked so delicious! I know you will enjoy it and the time well spent.
many more blessings,
Melissa