Isanotski is a little more fortunate than Rudakov in that he has ended up in a few more photographs. Unfortunately for him, that is because he is the neighbor of one of the most beautifully perfect volcanoes on this planet as well as one of the Aleutian arc’s most active. To add more insult to injury, it is likely that some if not all of his “uncertain” eruptions might actually have come from Shishaldin. The Aleuts may have had a perfectly endearing moniker for this eroded old volcano, but it’s the white-man’s nickname that stuck. Poor “Ragged Jack” needs all the love we can give him. His GVP entry is quoted below.
Rugged pinnacles form the summit of the deeply eroded Isanotski stratovolcano, locally known as Ragged Jack, at the center of an E-W-trending group of three volcanoes on eastern Unimak Island. Four poorly documented historical eruptions were noted in the 18th and 19th centuries. However, Miller et al. (1998) considered that some or all of these eruptions could have been from neighboring Shishaldin volcano and that historical eruptions of Isanotski must be considered unlikely, given the extreme degree of erosional dissection.