In 1935 John Perry, David Parsons, and Rolando Palmedo planned the "Bromley Run" from an airplane.

With the addition of the J-bars, Bromley was able to advertise a mile long tandem lift serving 1,300 vertical feet, making it a major player in the New England ski industry.

After he left, a large expansion took place during the 1974 season when Bromley spent $1 million on snowmaking and lift additions.

To attract business in the summer, in 1976 Stig Albertsson installed North America's first triple-tracked alpine slide.

The Sun Mountain Express Doppelmayr Detachable Quad chairlift was also installed, cutting the ride to the summit by more than half.

[2] The Fairbank Group also operates the O'Donnell owned Jiminy Peak Mountain Resort.

[2] During the summer, Bromley has a Mountain Adventure Park which includes an alpine slide, multiple trampolines, a climbing wall, mini golf, space bikes, a giant swing, a waterslide, a Kidzone fun park, and scenic chairlift rides.