Agassiz National Wildlife Refuge
“Agassiz National Wildlife Refuge is located in northwest Minnesota. Packs of wolves, moose, waterfowl, and 300 species of birds make this refuge a wildlife wonderland.” There is a 4 mile self-guided auto drove and a 0.25 mile foot trail that runs along the auto drive. Brochure Phone: 218-449-4115 Website.
From OhRanger.com: there are …”three walking trails: two are universally accessible trails, being 0.5-mile and 0.7-mile, and another is 0.25-miles. There is a wildlife observation blind along the two longer trails. Headquarters Hiking Trail is a half-mile, self-guided, foot trail.” Since the refuge website does not address accessibility, it would be best to call ahead to be sure trails are easy enough for you.