I'd have to dig out old records and books, but I can say that going back still farther in time, F&M were active in 1970 (photos showing them in eruption with my old yellow Jeep parked across the road) and in 1971, and judging by what I have in my book, they must have also been active in 1972, 1973, and 1974. Scott Bryan In a message dated 12/18/2011 11:58:30 A.M. US Mountain Standard Tim, upperbasin at comcast.net writes: To go back farther, 1976-77 active 1978-June 1979 dormant 1979 June - 1981 active 1982?? Dormant (don' recall specifically because we were all in Steamboat mode) 1983-84 active -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20111219/f1d58fbb/attachment-0001.html>