I have found one reference that states Main Ramp functions until 3540. I hope we don't have to get that low just to check how long the ramp is viable. When I find more historic data or the lake goes below 3550, I will know more and pass the information along.From what I can find minimum launch elevation for Stateline AND Wahweap main ramp is 3558'? If Stateline is closing, is Main Ramp close to closing also? Or can Main Ramp handle a lower lake elevation?