The unit generally provides reports and mapping tools to support emergency response. These resources are from its data page. From its website:

The mission of the Humanitarian Information Unit (HIU) is to serve as a U.S. Government interagency center to identify, collect, analyze, and disseminate all-source information critical to U.S. Government decision-makers and partners in preparation for and response to humanitarian emergencies worldwide, and to promote innovative technologies and best practices for humanitarian information management.

Note: The data may not be available under the public domain. This is assumed as it is provided by an agency of the US government.

About this itemHubbard County has over 3,700 monumented PLSS corners across all 999 square miles of the county. The County Surveyors have been been making a deliberate effort over the past 25 years to re-certify every corner with modern GPS coordinates. These certificates are heavily utilized by area surveyors and Hubbard County Staff alike. To better support the efforts of the County Surveyors, Hubbard County GIS has create a publicly available interface to view Certificate of Government Corners for every PLSS corners in the county. Users of the map can also quickly determine the general date of when a certificate was last recorded. The map also includes an mosaic overlay for the original PLSS (from the State of MN), and PDFs of the original PLSS surveys for each township. Author/ContributorJack BoveeOrganizationHubbard County, MN Org Websitehttps://www.co.hubbard.mn.us/