Can we bring our own firewood to make a fire? and is there a current Burn Ban?

I was there 2 weeks ago. Burn ban was lifted in January. You can buy firewood locally. The park host did not have any. There are some stores locally but a distance from the park

I saw a sign requesting park visitors to not bring firewood from other locations, as it might contaminate the area with insects or plant disease. There is probably something on their website about what can and can't be used.

You'll have to ask at the entrance if there's a burn ban. They also usually have the information on the website but it could change by the time you get there. I think they do allow you to bring your own firewood.