Books in Order

1. Track of the Cat (1993) Guadalupe Mountains National Park in Texas

2. A Superior Death (1994) Isle Royale National Park in Lake Superior, Michigan

3. Ill Wind (1995) Mesa Verde National Park in Colorado

4. Firestorm (1996) Lassen Volcanic National Park

5. Endangered Species (1997) Cumberland Island National Seashore of the coast of Georgia

6. Blind Descent (1998) Carlsbad Caverns National Park in New Mexico

7. Liberty Falling (1999) Statue of Liberty and Ellis Island National Monuments in New York City.

8. Deep South (2000) Natchez Trace Parkway in Mississippi

9. Blood Lure (2001) Glacier/Waterton National Peace Park in Montana

10. Hunting Season (2002) Natchez Trace Parkway in Mississippi

11. Flashback (2003) Dry Tortugas National Park, a grouping of tiny islands seventy miles off Key West

12. High Country (2004) Yosemite National Park in California

13. Hard Truth (2005) Rocky Mountain's National Park, Colorado

14. Winter Study (2008) Isle Royale National Park in Lake Superior, Michigan

15. Borderline (2009) Big Bend National Park in Texas

16. Burn (2010) New Orleans, Louisiana