I did some extensive travelling recently in some rural areas of the Midwest. I believe it was in Minnesota that I saw several houses (they may have been farm houses) that had signs in front that said “No Land in Trust”.
I assume that the signs referred to land trusts where land is designated so that it can’t be sold or used for development.
If this is the case why would they have such an objection? I don’t think you can force someone to put their land in a trust. If a neighbor decides to do it doesn’t that just make your land more valuable?
A google search for “no land in trust” sees to point towards a HUGE number of Native American related sites, and concerns. “No land in trust” seems to be the phrase used for tribes who have no tribal land of their own.
Perhaps someone who knows more about Native Americans might have more insight.
Farmers and ranchers with decent-sized land holdings have long been in the habit of putting ownership of that land in a trust, presumably to dodge estate taxes down the line. But I can’t imagine anyone who doesn’t do this seeing it as something to brag about, so I’d go with the Native American explanation already given.