You can drink within the confines of your camping unit. Public "display" of alcohol is prohibited.
Todd put it nicely. Keep it quiet.
Prohibited Activities. Alcohol is prohibited in public areas in every state park. The only exceptions are resort lodge restaurants and lounges, which provide complete beverage service. ... But, inside your camping unit is not a public area so you may consume alcohol in your RV or tent. This is different than say MI where you are not permitted to bring alcohol into the parks.
Keep it disguised, like in a glass
No alcohol but you can drink anything else.
No state parks have a no alcohol policy.
Thanks! Your answer is awaiting moderation.