The Metz Ice Plant, also known as the Jacob Klaer Gristmill and the Milford Ice and Refrigeration Company, is an historic, American ice manufacturing plant that is located in the Delaware Water Gap National Recreation Area in Milford, Pike County, Pennsylvania.

[1] This historic structure is a late-nineteenth century grist mill that was converted to an ice manufacturing plant.

The oldest section, which was built in 1869, is a 1+1⁄2-story, wood-frame building with a gambrel roof.

Five smaller additions of concrete block construction were built between 1927 and 1950.

The former grist mill was converted into an ice plant between 1924 and 1930.