Adult Foster Care. Adult Foster Care Programs licensed through the county that provide 24 hour staff supervision for up to four adults in a family-like environment. SSIS Adult Protection Worker Training. The SSIS Adult Protection Worker course follows the life of a vulnerable adult maltreatment case starting with the intake received from MAARC through the investigation and closing of a case. Located in the arrowhead region of Northeastern Minnesota, St. Louis County is the largest county east of the Mississippi River. St. Louis County is known for its spectacular beauty, natural resources and year-round recreation opportunities.