| Comments: | “North Angle Geyser” of Landis (1989) (Hydrothermal Observations in Yellowstone National Park, 1988, pp. 183, 341) in the Sprinkler Group, Lower Geyser Basin; = UNNG 9 / vent 9 of Wolf & Paperiello, 1989 (Report on the Kaleidoscope & Sprinkler Groups, pp. 25, 35-36); vent is 6 to 7 meters north-northeast of true Angle Geyser (see cited 1989 W&P report on pp. 25, 29-30) & located at 44° 33' 15.44" North latitude, 110° 48' 41.50" West longitude. Same geyser as seen in: https://www.youtube.com/watch?v=9z4QZwsnG_c North Angle Geyser was engaged in different behavior compared with previous years - never seen this geyser do anything different before. Decent-sized erupting (for this feature) for <1 minute only. Visible water rises just before eruption initiations. Didn't record all eruptions today. Filmed some of these: 1137, 1152-1153, 1158, 1215, 1221, 1226, 1232-1233, 1240, 1247, 1253-1254, 1300 + 38s to 1301 + 17s (duration of ~39s), 1308 + 17s to 1308 + 59s (duration of ~42s), 1314, 1326, 1332, 1338, 1345-1346, 1352-1353, 1358-1359, 1407, 1416, 1424. No North Angle eruptions during Reverse Firehose's eruption, and for about 40 minutes after it was done. North Angle eruptions after Reverse Firehose: 1644 ini, 1654-1655, 1704-1704, 1712-1713, 1721, 1737, 1744. Closed intervals for North Angle Geyser before Reverse Firehose's eruption: 6m, 6m, 5m, 6m, 8m, 7m, 6m, 7m, 8m, 6m, 12m (apparently), 6m, 6m, 7m, 7m, 6m, 9m, 9m, 8m. Closed intervals for North Angle Geyser after Reverse Firehose's eruption: 10m, 10m, 8m, 9m, 16m (apparently), 7m. |