Many passersby of Highway 99 confused this two-story yellow building for a bulldozer. It is actually shaped and patterned as a construction vehicle but it houses the offices of United Equipment, a company that sells and rents construction equipments and machines. Experts say that the company is able to present itself in an effective way through a ?duck?, which is a type of architecture that resembles the form of the product it endorses. Built in 1976, the United Equipment Office is modeled after a 20th century Cat D5 bulldozer.

The bulldozer office has a dimension of 66-feet in length, 21-feet in height, and 28-feet in width. It is made up of redwood and plywood as well as steel and aluminum hydraulics to perfectly carry the form of a bulldozer.

Even though the location is situated in a rocky area, the interior of the building is typically an office ambiance. There is a reception desk, side offices, a staircase leading to the second floor, and an executive office which is believed to be situated in the bulldozer's engine room. There are displays of published articles about the office. Motorists and tourists can stop by the bulldozer and take pictures but the administrators said exhibition on the rocks are prohibited. Though the front face of the office is bulldozer-like, its back is flat and blocked by trees, therefore, a full 360-degrees view of the building is quite impossible.