The line separating Vermont and New Hampshire runs right through Whetstone Beer Co.'s taproom on the Connecticut River, inspiring the brewery to celebrate its unique location with the release of Borderline Pale Ale on April 13 in Brattleboro, Vt. .

The "interstate" nature of Whetstone Beer Co. has a complex history. The original 1903 wooden bridge crossing the Connecticut River to New Hampshire at Whetstone's Bridge Street location was replaced in 1920 by a 330-foot-long truss. To support the structure, new footings were poured into the riverbed, extending the "land" on the Vermont side of the river by 5 feet.

However, the state line already established by the US Geological Survey refused to budge, even as the structure that now houses Whetstone Beer Co. was built atop. Today, you can plant a foot on either side of the USGS borderline painted on the floor and literally drink beer in two places at once.