Lassen Park's road is now open all the way through from Manzanita Lake to the South Entrance. I took the drive on June 1st and there is still some snow at the higher elevations (especially at the Summit and Lake Helen). Depending on the weather which has been hot and cold the snow might not be around too long, so grab your photo gear and head up to Lassen Park. There is still a little snow on the Manzanita Lake side of Lassen, but it is not going to last.