| Note: | From the July–August 1991 Sput (Vol. 5 No. 4): "...it was realized by [Rocco] Paperiello and [Mike] Keller that deep runoff channels marked Whistle's cone, showing that an eruption must have occurred between May 12 and 24."
In a post to the geyser listserv dated 1997/01/12, Paperiello writes: "As to the May eruption, I was keeping an eye on Whistle in 1991, and have the eruption in May down to between the 12th and the 18th, assuming that it takes 2 1/2 days to again reach overflow after an eruption." |
