https://www.fs.usda.gov/recarea/stanislaus/recreation/camping-cabins/recarea/?recid=21866&actid=29 hopefully takes you to the NFS website for the campground. Currently says no water, sites opening as snow is removed.
If the gates are open you can camp. There might not be a camp host on site so you pay in the drop box. The restrooms may be locked as well if there is no camp host. I have camped there dozens of times with no services, even in the snow.
If it is closed how will you get in?
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