 Upon its release, "Twin Peaks" debuted at number 166 on the US "Billboard" 200 albums chart in the week of March 9, 1974.The album spent a total of eight weeks on the chart, peaking at number 142 in the week of March 30, 1974.This marked the lowest peak position of any Mountain release to that date, and remains the second lowest ahead of only "Go for Your Life" at number 166.