Cave Point Group Use Shelter is located at the very north end of Canyon Ferry Reservoir, 30 miles east of Helena, Montana, along Highway 284. Cave Point offers year-round access to a wide range of recreational opportunities. The Canyon Ferry area has a rich mining history. Cave Point is named for one of the first settlements in the area, Cavetown. Visitors to the shelter can envision the original horse drawn ferry crossing that transported miners across the mighty Missouri River to work the mining camps.