When it comes to sulfur, Sicily seems to get all the attention-- everything else, be it from Baja California or Bolivia seems to be relegated to the realm of wholesale, though I suppose it is somewhat appropriate, considering the crystals from those localities seem to grow endlessly and never reach a very large size.  There is however, an American locality that produces exceptional examples.

This is an older piece, remarkably complete with good crystal form and on matrix-- what I have seen in the past has typically been off matrix, and the few with individual crystals in this size range tend to have rather nasty contacts.