(plaintiff was driving ATV on public trail when she lost control and crashed suffering spinal cord injuries and paralysis; plaintiff sued defendant on basis that state (MI) had contracted with defendant to grade and maintain trail and defendant negligently failed to properly maintain trail; defendant moved for summary disposition on basis that trail covered under recreational use act which limited liability to gross negligence; trial court granted defendant's motion; on appeal, court reversed on basis that state recreational use statute applied to "owner, tenant or lessee of land" and court would only enforce the law as written and not give statute a "judicial gloss designed to promote what the court believes to be the Legislature's policy goal in enacting the statute"; defendant entered into "grant agreement" with state DNR to improve trail, but no ownership interest transferred; defendant not an "owner, tenant, or lessee" of land on which plaintiff injured and statute inapplicable).