It is located north of Mount Ivy, east of Pomona, south of Tomkins Cove, and west of Garnerville.

[2] 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.

In 2009, Thiells United Methodist Church, located on Rosman Road, marked its 225th anniversary.

A small building was built on a piece of land which was set aside by John Thiell, although he did not attend.

[citation needed] In 2010, the David B. Roche Volunteer Fire Company celebrated its 50th anniversary.

On September 11, 2001, the company experienced tragedy when New York police officer and Thiells volunteer John Coughlin, whose name remains on the roster, died in the World Trade Center.