Mount Tom, 1,202 feet (366 m), is a steep, rugged traprock mountain peak on the west bank of the Connecticut River 4.5 miles (7 km) northwest of downtown Holyoke, Massachusetts.

A popular outdoor recreation resource, the mountain is known for its continuous line of cliffs and talus slopes visible from the south and west, its dramatic 1,100-foot (340 m) rise over the surrounding Connecticut River Valley, and its rare plant communities and microclimate ecosystems.

The project changed hands several times until its closure in 1988 when competition from larger amusement parks gradually sapped business away from what had become affectionately known by local residents as "The Queen of the Mountain".

The original foundation was not used again, however days later it was decided a much cheaper and smaller sheet metal structure would be built adjacent to it, housing a restaurant and souvenir stand.

Because of its construction and lack of grandeur however, it remained unpopular, with one local patron, Katherine Root, remarking "the wind sounded like thunder when it roared through the building and it rattled constantly"; it was ultimately dismantled a year after the railroad, in 1939.

[10] Hot, dry upper slopes, cool, moist ravines, and mineral-rich ledges of basalt talus produce a combination of microclimate ecosystems on the mountain that support plant and animal species uncommon in greater Massachusetts.

The mountain is also well known as a place to watch seasonal raptor migrations; an observation tower on nearby Goat Peak is maintained for that purpose.