The visitor center gates at yorktown are closed. If you visit the old Yorktown area, park near the Victory memorial and walk around.
Honestly, if volunteers aren't manning the visitor center museum (and they might be), Yorktown is a tough park to visit. You should download a driving map so you can self-tour. OTOH, Riverside Yorktown is worth the trip. Good luck.
Not if there is a gov't shutdown
Hi! The Visitor's Center should be open 9-5, with the park itself closing at sunset.
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