There's another small 2420+ contour northeast of this spot listed at 2422. I doubt it's higher. I had the sense that all the ground around me was lower at the spot I marked. I had repeated GPS readings at 2426--not that GPS is all that accurate, but reassuring that they were not lower than 2422. LOJ gives prominence of 480 (using interpolation), so I assume it's 470 according to the Peakbagger method.