The Combination Building is a sprawling T-shaped structure that contains a beach house, shelter, and concession. It is one of the largest buildings constructed in the state park system, with overall dimensions of 87' x 84'. The building features battered quartzite stone laid random ashlar, a steeply pitched roof with clipped gables, a shed dormer, and small-pane casement windows. The building is divided into three distinct sections based on function: a centrally located concession with a large U-shaped counter, a shelter to the west, and rest rooms and changing wings to the east. A central entry allows passage through the building and leads to a terrace along the south facade, defined by a low stone wall.

The major design feature of the shelter is an open beamed ceiling with huge timber trusses constructed with 10" x 12" chords with scissors joints. A third beam, suspended vertically from the peak of the gable, connects with each scissors truss. Three lighting fixtures built from heavy timbers hang from the ceiling. The shelter also contains a stone fireplace with a massive timber mantel.

The remainder of the building contains a checking room, rest rooms, utility space, and changing areas. When seen from the east facade, the checking room is located in the center. Its counter, which may be closed with overhead doors, is flanked by windows with wooden grills. Men's and women's rest rooms on either side of the check room are entered through large doorways that were originally designed with rolling steel doors. Open changing wings enclosed by stone walls extend from the rest rooms. The men’s changing wing is set at a 45-degree angle from the building.

This was one of the first buildings designed for winter use in the state park system. It retains its original use with the exception of the concession, which is now used for interpretive purposes.

Residence
Builder: CCC
Architect: Edward W. Barber
Date: 1941-42