In 1975, a movie titled The Legend of McCullough’s Mountain was released to theatres. The movie also went under the title of Blood Beast of Monster Mountain.
The movie was a rework of a 1965 movie titled The Legend of Blood Mountain. The 1965 movie was also known under another title: Demon Hunter.
The Legend of Blood Mountain included a strange humanoid-like creature that really didn’t resemble a Sasquatch. It’s difficult to say what it resembled.
The 1975 movie clearly used Sasquatch as the premise, and fused historical accounts and legends, with an over-the-top fictionalized and meandering plot.