From the June calendar:
13-24 – US – Breath of Life Archival Institute for Indigenous Languages (2011)
20-July 1 – US – NILI Summer Institute 2011
27-29 – Canada – 2011 Athabaskan Languages Conference
It appears that the National Native Language Revitalization Summit will not be taking place this year.
Update: the summit will be taking place. See “National Native Language Revitalization Summit on June 22” on this blog.