Photos: See Lock Ridge Furnace on March 3

The  iron works in Alburtis will be among historic sites across Lehigh County open to the public from noon to 3:30 p.m. on Saturday, March 3 as the county celebrates its 200th anniversary.

A guide from the Lehigh County Historical Society will be on hand to give free tours.

The furnace property is now a park - much different from the hot, dirty and smelly industrial venue where 85 men toiled for 12-hour shifts.

Alburtis boomed while the furnaces burned, adding a silk mill and shirt factory that employed the wives and daughters of iron workers during the late 1800s and early 1900s.

Other historic sites open Saturday will be:

• Trout Hall, 1770 Colonial stone mansion, 414 W. Walnut Street, Allentown
• Troxell-Steckell Farm Museum, 4229 Reliance St., Egypt (Whitehall Township)
• , 3600 Dorney Park Road, South Whitehall Township