Yes! Actually September is a great time to visit. Battlefield can get very hot in the summer.
Yes it's open all year round Some things like the houses might not be open on holidays etc but the battlefield is always open
Yes, it us open all year and even in the rain since that is what was going on when we visited.
It's open all year. Most park activities are outdoors. The main visitors center will be open, the "stone house" that is just down the hill from the visitors center probably won't be. Not a huge deal, but it is a near place to visit when it's open.
Yes it is.
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