During January and February 1791, following the massacre at Big Bottom and the start of the Northwest Indian War, the settlers built Fort Frye at Beverly.

But as they were in a hurry, and it saved them one line of curtains, while the block houses at the angles defended the sides just as well as in any other form, it was adopted.

The base of the triangle rested on the river, distant only a few paces from the bank, and was about two hundred feet in length.

The two longer sides were filled in with dwelling houses, some of which were two stories high, and others of a lesser height, while a considerable portion were built barrack fashion, with only one roof, pitched inward, so that the rain from it fell within the garrison.

[1] Down the Muskingum River at Marietta, at the confluence of the Muskingum and Ohio rivers, United States troops built Fort Harmar, and the Ohio Company of Associates built Campus Martius and Picketed Point Stockade.