Town of Haverstraw                               
1 Rosman Rd., Garnerville, NY, 10923
Phone (845) 429-2200 Fax (845) 429-4701
Office Hours Monday-Friday 9:00AM-5:00PM
http://www.townofhaverstraw.us/

Thiells, formally known as Thiells Corner in the 1850s, is a hamlet (and census-designated place) in the Town of Haverstraw Rockland County, New York, United States located north of Mount Ivy; east of Pomona; south of Tomkins Cove and west of Garnerville.
During the American Revolution, Thiells was known as Haverstraw Forge where General “Mad” Anthony Wayne leading 1,350 Continental Army troops was able to watch the area of Stony Point.