Estádio Olímpico Colosso da Lagoa is a multi-use stadium in Erechim, Brazil.

It is named after the Lagoa Vermelha (meaning Red Lake), which is located near the stadium.

The inaugural match was played on September 2 of that year, when Santos beat Grêmio 2–0.

The first goal of the stadium was scored by Santos' Pelé, who received a trophy awarded by Rádio Tupi after the match.

The stadium's attendance record currently stands at 25,000, set on August 18, 1974 when Internacional beat Ypiranga 2–0.