During its early years of operation, the field at the Metrodome was surfaced with SuperTurf.
The surface, also known as SporTurf, was very bouncy—so bouncy, in fact, that Billy Martin once protested a game after seeing a base hit that would normally be a pop single turn into a ground-rule double.
Baseball and football players alike complained that it was too hard.

This surface was upgraded to Astroturf in 1987, and in 2004, the sports commission had a newer artificial surface, called FieldTurf, installed.
FieldTurf is thought to be a closer approximation to natural grass than Astroturf in its softness, appearance, and feel.
A new Sportexe Momentum Turf surface was installed during the summer of 2010.

When the conversion between football and baseball took place, the pitcher's mound was raised and lowered by an electric motor.
The mound weighed 23,000 pounds (10,000 kg) and was 18 feet (5.5 m) in diameter.
With the field repair, the sliding pits and pitcher's mound used by the Twins and Gophers were removed.
Any future baseball games would see baserunners slide on "grass."
The home plate area was kept, as it was not "in-play" for football configuration.
The original homeplate installed at the dome was memorably dug up after the Twins' final game and has been installed at Target Field.
A new field was installed in summer of 2011 due to the damage from the December 2010 roof collapse.
During its early years of operation, the field at the Metrodome was surfaced with SuperTurf. The surface, also known as SporTurf, was very bouncy—so bouncy, in fact, that Billy Martin once protested a game after seeing a base hit that would normally be a pop single turn into a ground-rule double. Baseball and football players alike complained that it was too hard.
This surface was upgraded to Astroturf in 1987, and in 2004, the sports commission had a newer artificial surface, called FieldTurf, installed. FieldTurf is thought to be a closer approximation to natural grass than Astroturf in its softness, appearance, and feel. A new Sportexe Momentum Turf surface was installed during the summer of 2010.
When the conversion between football and baseball took place, the pitcher's mound was raised and lowered by an electric motor. The mound weighed 23,000 pounds (10,000 kg) and was 18 feet (5.5 m) in diameter. With the field repair, the sliding pits and pitcher's mound used by the Twins and Gophers were removed. Any future baseball games would see baserunners slide on "grass." The home plate area was kept, as it was not "in-play" for football configuration. The original homeplate installed at the dome was memorably dug up after the Twins' final game and has been installed at Target Field. A new field was installed in summer of 2011 due to the damage from the December 2010 roof collapse.
Hubert H. Humphrey Metrodome