National Parks have long been known for their scenic vistas. Scenic vistas at Catoctin Mountain Park include: Chimney Rock, Hog Rock, Thurmont Vista, and the Blue Ridge Summit Overlook.

Chimney Rock is at about 1,400 feet in elevation and looks out to the east over the piedmont region. Hog Rock is at 1600 feet and can be reached by parking at the Hog Rock Area parking lot.

Hog Rock affords a view to the east of the mountains of the Weverton Formation and of the gap through which Hunting Creek flows. The Hog Rock Trail is a self-guided and the printed interpretative guide is available at the trailhead or the Visitor Center.

The Thurmont Vista, with an elevation of 1,502 feet, is a relatively short steep climb. The view here is to the east of the Frederick Valley and Thurmont.

The Blue Ridge Summit Overlook is the most accessible high vista point in the park The trail leaves from Hog Rock Parking Area and is a short, gradual climb to the vista. This vista offers a beautiful view to the north of the Harbaugh Valley and mountains of southern Pennsylvnia. The valleys and slopes seen to the north drain into Owens Creek.

In the eastern United States where relative humidity and pollution levels are high, deterioration of visibility is a serious threat. In 1986, a visibility study was conducted at Catoctin to establish baseline data on the average visible distances from three overlooks in the park. It was intended that these overlooks be monitored in future years to determine if haze and pollution are affecting the visibility. Further study is needed to determine how much visibility is being impaired.