Three Tuns is an unincorporated community located in Montgomery County

Montgomery County, Pennsylvania

Montgomery County is a county located in the U.S. state of Pennsylvania, in the United States. As of 2010, the population was 799,874, making it the third most populous county in Pennsylvania . The county seat is Norristown.The county was created on September 10, 1784, out of land originally part...

, Pennsylvania

Pennsylvania

The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

, in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

. The community is in Upper Dublin Township

Upper Dublin Township, Pennsylvania

Upper Dublin Township is a township in Montgomery County, Pennsylvania, United States. The population was 25,569 at the 2010 census.Upper Dublin is made up of several community areas, many of which are unincorporated areas in Montgomery County with no legal status, and are used primarily by the US...

, 2 miles (3.2 km) northeast of the Borough of Ambler

Ambler, Pennsylvania

Ambler is a borough in Montgomery County, Pennsylvania, in the United States, approximately 16 miles north of Philadelphia.- Village of Wissahickon:...

 and 3 miles (4.8 km) west of Horsham

Horsham, Pennsylvania

Horsham is a census-designated place in Montgomery County, Pennsylvania, United States. The population was 14,842 at the 2010 census. Horsham is located entirely within Horsham Township, and it is home to Naval Air Station Joint Reserve Base Willow Grove.In 2007, Horsham was named the 15th best...

.

Three Tuns is located at the intersection of Butler Pike and Norristown Road, approximately 0.45 mile (0.724203 km) southwest of Butler Pike's intersection with Pennsylvania Route 63

Pennsylvania Route 63

Pennsylvania Route 63 is a long state highway located in the Philadelphia, Pennsylvania area. The western terminus of the route is at PA 29 in Green Lane, Montgomery County. The eastern terminus is at Interstate 95 in Bensalem Township, Bucks County...

 and approximately 0.53 mile (0.8529502 km) west of Norristown Road's intersection with Limekiln Pike

Pennsylvania Route 152

Pennsylvania Route 152 is a 25 mile long state highway located in the US state of Pennsylvania. The route, travels north–south from PA Route 309 located in Cedarbrook north to PA Route 309 located east of Telford.PA 152 is unique to other Pennsylvania Highways because it ends at two...

.

Bean's 1884 History of Montgomery County, Pennsylvania describes Three Tuns as follows:

The village of Three Tons is situated in a fine fertile section of country, at the intersection of the Horsham and Butler roads, the latter being turnpiked to Ambler, two and a half miles distant. It contains a store, hotel, school-house, several mechanic shops and five or six houses. The post-office was established here in 1858; T. G. Torbert, postmaster. The Union Library of Upper Dublin is kept here, over the store of E. T. Comly, and now contains about two thousand volumes. It was incorporated May 25, 1840; E. T. Comly, treasurer, and Ellie Teas, secretary and librarian. The Upper Dublin Horse Company, organized many years ago, holds its annual meetings here. Recent researches establish the fact that before 1722 a well traveled path led from Edward Farmar's mill

Farmar Mill

Farmar Mill is a historic mill building. The mill was powered by the Wissahickon Creek and is located on Mather's Lane near Skippack Pike , and just west of the historic Bethlehem Pike in the village of Whitemarsh , Pennsylvania, in the United States.The water-powered gristmill was built around...

, in Whitemarsh, through this place, to Richard Saunders' ferry, on the Neshaminy (now the village of Bridge Point, three miles south of Doylestown).

In 1896, a tree buried 10 feet below the surface was discovered. Intact, 18 feet long, it had turned completely to hematite. It was known locally as "The Iron Tree".