Here's a word on the summit, since there seems to be a lot of confusion.
Mt. Baldy has two summits - north and south. The north one is more the culmination of a high meadow on a ridge, whereas the south one is the more striking bald hump at the very end of the trail. Both of these summits (of course) look higher from the other one, and it's hard to say which might be higher.
Herein lies the problem. According to older USGS maps, the reservation boundary line cuts between the two summits, which is why the southern one has technically been off limits to non-tribal members. Strangely enough, the newer USGS topo shows the boundary moved so that both summits are on the reservation... which means both may now be off limits.
As far as elevation goes, the maps have the southern summit at 11403, whereas the northern one has no exact elevation... but the last contour line is at 11400, which would mean that summit could be anywhere from 11400 to 11439 feet. Though it doesn't necessary look as though it's higher, the map would suggest that it probably is.