Timeline: 1970's
1971
Campbell Basin double (C-5) starts operation in January.
1972
Tacoma Teachers Ski Club opens in February, the last of the ski clubs to be built. In addition to Tacoma Teachers, the ski clubs in operation are Enumclaw, SkiBacs, Capitol, Edelweiss, Sitzmark, Rokka, Forelaufer, Billiken, and Skiers Inc.
Crystal hosts the Rainier World Cup February 25-27.
Day Lodge is expanded, with restrooms as configured today and the Brown Bag Room.

1973
In summer, Bullion House is remodeled to repair fire damage from the previous winter.
1974
Bullion Basin triple (C-6) is built on east side of valley, north of Gold Hills.
1975
Frances A. "Fran" LeSourd becomes chairman of the board through 1977.
1977
Richard S. "Dick" Marshall becomes chairman of the board through 1979.

1979
Crystal management operates chairlifts to Summit House early the morning of February 26 so that Western Washington University science students and Overlake High School students can watch the solar eclipse.
High Campbell Basin double (called C-6) begins construction in summer, built from old Hall chairlift moved from Yodelin. Existing Bullion Basin triple becomes C-7. High Campbell Basin chair starts operation in beginning of 1980.
Wallace "Wally" Staatz becomes chairman of the board through 1989.