Conversation so far:
What happened at the Menominee reservation?
The reservation was created in a treaty with the U.S. signed on May 12, 1854 in which the Menominee relinquished all claims to the lands they held under previous treaties.
What lands did the Menominee hold under previous treaties before the one signed with the U.S. on May 12, 1854, include?
Is there a casino on the Menominee reservation?
Since June 5, 1987, the Menominee tribe has owned and operated a Las Vegas-style gaming casino, associated with bingo games and a hotel.
What is the Menominee reservation home to?
The Menominee developed the College of Menominee Nation in 1993 and it was accredited in 1998. It includes a Sustainable Development Institute.
Are there any other interesting aspects about the Menominee article besides the College of Menominee Nation?
After the Menominee tribe had regained federal recognition in 1973, it essentially restored the reservation to its historic boundaries in 1975.
What has happened on the Menominee reservation since 1975?
Many small pockets of territory within Menominee County are not considered as part of the reservation.

Question: What are the pockets referring to?
Self-contained rewrite: What are the pockets referring to in small pockets of territory within Menominee County?