Boulder ? The University of Colorado topped the list of party schools in the nation, while Brigham Young University was “stone-cold sober,” according to the latest Princeton Review survey.

The “Best 351 Colleges” survey is based on responses from about 100,000 students at U.S. campuses. The review, which has no affiliation with Princeton University, has been conducting the study since 1992.

Despite a six-year effort to curb binge drinking at the University of Colorado, the school ranked third in widespread use of marijuana, fourth in the prevalence of hard liquor consumption and 11th in the prevalence of beer usage, Princeton Review reported in its 2004 findings. CU also ranked first among schools where students study the least.

Last year, it came in at No. 8 on the party list.

Brigham Young University was ranked the top “stone-cold sober” school, according to the study, while Army’s military academy at West Point, N.Y., was the hardest to get into.

The American Medical Assn. has criticized party school listings, saying they legitimize high-risk drinking and portray alcohol as an essential part of student life.

Princeton Review editorial director Robert Franek said the survey merely reported on conditions at the schools.

Other top 10 party schools included the University of Wisconsin-Madison; Indiana University, Bloomington; University of Illinois, Urbana-Champaign; Washington and Lee University, Lexington, Va.; University of Texas-Austin; The University of the South, Sewanee, Tenn.; DePauw University, Greencastle, Ind.; Saint Bonaventure University, Olean, N.Y.; and the University of Florida, Gainesville, Fla.

An unidentified man walks through the tunnel that connects the University of Colorado campus to the nearby business area called The