| Note ID | Start Time (US/Mountain) | End Time (US/Mountain) | Entrant | Note |
| 28293 |
17 Sep 2023 @ 0826 |
--- |
SantaFe108 |
Steaming and grumbling, air temp ~35° F. |
| 27277 |
28 Jul 2023 @ 1240 |
--- |
SantaFe108 |
Quietly steaming. |
| 26496 |
20 Jun 2023 @ 0656 |
--- |
SantaFe108 |
Steaming with low grumbling. Air temp 37° F. |
| 21036 |
18 Apr 2022 @ 0929 |
--- |
MAB |
quiet steam - 32° air temp |
| 16952 |
28 Apr 2021 @ 0923 |
--- |
MAB |
steamy- audible grumbles |
| 5377 |
01 Feb 1995 @ 1800 |
--- |
research-mab |
02/01/1995 Harding geyser is full of water and boiling heavily all along the vent. Temp is 100ºC. Occasionally it will surge and overflow slightly. It will be interesting to see if this activity is just disturbance related or an indication of increasing activity. |
| 30703 |
09 Jul 1989 @ 1200 |
--- |
research-mab |
7/9/1989 - no time noted - Harding Geyser behaving like a fumerole. Subsurface boiling is audible. |
| 30840 |
14 Aug 1988 @ 1200 |
--- |
research-mab |
8/14/1988 - no time noted - Harding Geyser continues to be a gently steaming fumerole in the trees this summer. An alarmed visitor mistook it for a beginning forest fire last week. |
| 33469 |
02 May 1987 @ 1200 |
--- |
research-mab |
May 2, 1987 - no time noted - Harding Geyser– No change. |
| 33463 |
26 Apr 1987 @ 1200 |
--- |
research-mab |
04/26/1987 – no time noted - .Harding Geyser– The pool in Harding was about 15 inches below overflow, and a loud and extremely vigorous boil was 1 – 2 feet above the basin. Some small surges could be seen from the paved trail. |
| 33462 |
12 Apr 1987 @ 1200 |
--- |
research-mab |
04/12/1987 – no time noted - ..brief stop at Norris- Harding Geyser– No change except for no overflow. |
| 33460 |
04 Apr 1987 @ 1200 |
--- |
research-mab |
04/04/1987 – no time noted - Harding Geyser– No change from March 15 observation. |
| 33451 |
15 Mar 1987 @ 1200 |
--- |
research-mab |
March 15, 1987 - no time noted - Harding Geyser– As I was approaching the museum, I could hear a large splashing coming from Harding. The pool was full and very, very slightly overflowing. A rather vigorous boil over the main vent was reaching 2-3 feet high. When I returned 6 ½ hours later, the crater was still acting this way. |
| 31069 |
20 May 1983 @ 1200 |
--- |
research-mab |
May 20 1983 - no time noted - Disturbance!... Harding – water 2-2 ½ feet down in the vent boiling vigorously |
| 31066 |
15 May 1983 @ 1200 |
--- |
research-mab |
May 15 1983 - no time noted - Harding - no definite signs of an eruption but the water is down about a foot from the top of the vent. Down considerably from May 12. |
| 31064 |
12 May 1983 @ 1200 |
--- |
research-mab |
(May 12 83) - no time noted - Harding- Full and splashing 1-2 feet. |
| 31260 |
18 May 1982 @ 1200 |
--- |
research-mab |
May 18 1982 - no time - Harding full & bubbling 1 ½ ft |
| 4662 |
14 May 1982 @ 0000 |
--- |
research-mab |
5/14/1982 - no time - Harding Geyser – very full bubbling 1-2 ft |
| 31258 |
20 Feb 1982 @ 1200 |
--- |
research-mab |
February 20 1982 - no time noted - Harding Geyser 200º Marker 4’ from where it has been placed so possibly Harding has had an eruption in the past month. Light blue, slightly turbid H20 splashing 1 ½-2 feet. |
| 31192 |
15 Jan 1982 @ 1200 |
--- |
research-mab |
January 15th, 1982 - no time noted - Harding Geyser – 198º water level 6” from overflow point, blue-gray H20 splashing vigorously 2-3’ |
| 31587 |
11 Dec 1981 @ 1200 |
--- |
research-mab |
Dec 11 1981 - no time noted - Harding Geyser 202º water level down 3 ½’ from vent. Marker is still in place so it has been since early July since an eruption occurred… ever since they stopped blasting…. |
| 31790 |
22 Sep 1980 @ 1200 |
--- |
research-mab |
Monday Sept 22, 1980 - no time noted - One week following the disturbance, some porcelain basin observations: Harding Geyser – boiling about 3 feet down, 203ºF |
| 31717 |
23 Aug 1980 @ 1200 |
--- |
research-mab |
Saturday August 23 - no time noted - Harding Geyser- Fetid odor, boiling out of sight down vent. 203°F. Marker stick placed over vent. |
| 31661 |
17 Jul 1980 @ 1200 |
--- |
research-mab |
July 17, 1980 - no time noted - Harding Geyser – Boiling with a rumble deep within its crater. Bad smell (sewage seepage?) 203ºF |
| 31628 |
09 Jun 1980 @ 1200 |
--- |
research-mab |
June 9 1980 - no times - observations made over the week, entered on 9th - Harding Geyser – Full of water and chugging the last few days, 20xºF |
| 32250 |
14 Dec 1978 @ 1200 |
--- |
research-mab |
Thursday December 14 1978 - no time noted - Rick H - Harding Geyser dormant, water level down 60 cm & boiling vigorously |
| 4957 |
19 Jul 1978 @ 2327 |
--- |
research-mab |
07/19/1978 Harding – boiling hard 2327! |
| 32076 |
02 Apr 1978 @ 1200 |
--- |
research-mab |
April 2 1978 - no time noted - Temp. of Harding Geyser – 204º- lots of water boiling. |
| 32041 |
10 Mar 1978 @ 0730 |
--- |
research-mab |
March 10 1978 - Water can be heard (barely) at depth in Harding Geyser at 730. |
| 5524 |
21 May 1976 @ 0900 |
--- |
research-mab |
05/21/1976 Marker placed on Harding washed away, must have erupted during the night. |
| 5718 |
19 Jul 1974 @ 1800 |
--- |
research-mab |
07/19/1974 Harding – very active , water splashing to near top of vent
{no specific time} |
| 32702 |
23 Jun 1974 @ 0900 |
--- |
research-mab |
06/23/1974 - presumed morning time - Harding marker OK, boiling violently |
| 32701 |
22 Jun 1974 @ 0855 |
--- |
research-mab |
06/22/1974 Harding quite active water spouting near top of vent 0855 |
| 5976 |
29 Apr 1973 @ 1800 |
--- |
research-mab |
04/29/1973 Harding Geyser – water level covered rocks in vent with up to 2 inches of vigorous boiling – highest it has been all spring. |
| 5968 |
17 Apr 1973 @ 1800 |
--- |
research-mab |
04/17/1973 Harding Geyser – the boiling from its vent (east of the museum) can easily be heard from the door of the living quarters. Intermittent bursts in the form of a light spray are frequently playing up to 4 feet in height. |
| 6503 |
15 May 1972 @ 1800 |
--- |
research-mab |
05/15/1972 Harding Geyser – water level up to surface but very little runoff, boiling vigorously, clear water 198º |
| 33146 |
15 May 1972 @ 1200 |
--- |
research-mab |
1972 – May 15 - no time - 198F No water from the vent, just steam. |
| 6570 |
11 Sep 1971 @ 1800 |
--- |
research-mab |
09/11/1971 Harding Geyser 196º (down 4º 7/31/71) churning water 3’ below top of vent {temps taken 1430-1700} |
| 33145 |
31 Jul 1971 @ 1200 |
--- |
research-mab |
1971 July 31 - no time -No change – just steam (200F) |
| 33144 |
22 Jun 1969 @ 1200 |
--- |
research-mab |
1969- June 22 Harding has had no geyser activity at all this spring. The drainage from Harding looks like it has not been used since last summer water down about a foot – 200°F |
| 7409 |
22 Aug 1968 @ 1800 |
--- |
research-mab |
08/22/1968
Water running down channels of Harding, but Harding wasn’t overflowing when I walked up to check on it. {no specific time noted} |
| 7400 |
18 Jun 1968 @ 1800 |
--- |
research-mab |
06/18/1968
Harding played sometime today. |
| 7431 |
08 Jun 1968 @ 1145 |
--- |
research-mab |
06/08/1968
Harding overflowing at 11:45 am |
| 7374 |
27 Oct 1967 @ 0800 |
--- |
research-mab |
10/27/1967
Harding – no eruption since last notation. Water down 2 ft and very active. |
| 7370 |
10 Oct 1967 @ 0800 |
--- |
research-mab |
10/10/1967
Harding – may have played. Both markers gone – some erosion uphill. H2O is way down, doesn’t smell quite as bad. |
| 7310 |
02 Aug 1967 @ 0945 |
--- |
research-mab |
08/02/1967
Harding water level back below vent about 1 ft. All marker intact 945 |
| 7309 |
01 Aug 1967 @ 0800 |
--- |
research-mab |
08/01/1967
Harding did not erupt during night. Water level back down. |
| 7302 |
31 Jul 1967 @ 2025 |
--- |
research-mab |
07/31/1967
At 8:25 pm Harding was full to the point of overflowing and quite active. |
| 7391 |
31 Jul 1967 @ 2025 |
--- |
research-mab |
July 31 8:25pm Water level high - near overflowing – active. |
| 7393 |
24 Jul 1967 @ 0915 |
--- |
research-mab |
July 24 915a, Water has dropped down – still boiling hard but no eruption. |
| 7392 |
19 Jul 1967 @ 1345 |
--- |
research-mab |
July 19 Vent boiling over – heavily agitated, marker intact 811am 202º at 1:45p |
| 7280 |
18 Jul 1967 @ 1845 |
--- |
research-mab |
07/18/1967
Harding full and active at 6:45 pm – water puddled in rocks just above the geyser vent may be left over from rain. |
| 7278 |
06 Jul 1967 @ 0815 |
--- |
research-mab |
07/06/1967
Harding H2O level down out of sight – sounded like a steam phase but markers were intact 8:15 am |
| 33143 |
29 Jun 1967 @ 1200 |
--- |
research-mab |
June 29, - no time - 202°F and a ph of 5 at 110°F |
| 7267 |
22 Jun 1967 @ 0800 |
--- |
research-mab |
06/22/1967
Harding vent full & active but marker intact. |
| 7303 |
19 Jun 1967 @ 0800 |
--- |
research-mab |
06/19/1967
Harding vent full and active; placed marker. |
| 7390 |
18 Jun 1967 @ 0800 |
--- |
research-mab |
June 18 placed marker – vent full & active |
| 33142 |
13 Jun 1967 @ 0800 |
--- |
research-mab |
June 13, 1967 At 8:00 the water was up into the basin. Harding played about 3:15 pm. I did not see the water. Located East of the museum. The vent is about 8 to 11” wide and 3/5 feet long. The water is a light white in color. The water drains down into the Valentine alcove. |
| 7249 |
07 Sep 1966 @ 0800 |
--- |
research-mab |
09/07/1966
Harding Splashing to surface |
| 7242 |
04 Sep 1966 @ 0800 |
--- |
research-mab |
09/04/1966 Harding Water splashing visible 3’ below surface. |
| 7238 |
03 Sep 1966 @ 0800 |
--- |
research-mab |
09/03/1966
Harding Very quiet this morning. |
| 7236 |
02 Sep 1966 @ 0800 |
--- |
research-mab |
09/02/1966
Harding Very much agitated @ 8am. |
| 7234 |
01 Sep 1966 @ 0800 |
--- |
research-mab |
09/01/1966
Harding Water level above surface slightly & splashing vigorously. |
| 7226 |
30 Aug 1966 @ 0800 |
--- |
research-mab |
08/30/1966
Harding vent level one foot down & active |
| 7222 |
29 Aug 1966 @ 0930 |
--- |
research-mab |
08/29/1966
Harding full and boiling excitedly at 9:30 am |
| 7215 |
26 Aug 1966 @ 0800 |
--- |
research-mab |
08/26/1966
Harding – Splashing vigorously |
| 7213 |
25 Aug 1966 @ 0800 |
--- |
research-mab |
08/25/1966
Harding – nothing during night – H2O down 3 ft. |
| 7206 |
24 Aug 1966 @ 0920 |
--- |
research-mab |
08/24/1966
Harding – H2O down 2 feet – splashing as high as vent at 9:20 am. |
| 7203 |
23 Aug 1966 @ 1155 |
--- |
research-mab |
08/23/1966
Harding – Splashing out of vent, H2O down about one foot.
Temp 202º @ 11:55am – splashing. |
| 7202 |
22 Aug 1966 @ 0000 |
--- |
research-mab |
08/22/1966 Feisty – 1025a Temperatures 212ºF, the hottest I have measured on any feature in Norris in 3 years except for Harding which was once checked out at 215ºF {First mention of Feisty in this log - mab} |
| 7201 |
21 Aug 1966 @ 0830 |
--- |
research-mab |
08/21/1966 Harding – Marker intact at 8:30a. No H2O visible. |
| 7197 |
20 Aug 1966 @ 1030 |
20 Aug 1966 @ 1320 |
research-mab |
08/20/1966
Harding – Vent full of muddy water – slight fluctuation. Temp 178º, @ 10:30 water level still up boiling vigorously. Temp 201º, 1:20 pm water down below surf. but splashing wildly. |
| 7194 |
19 Aug 1966 @ 0800 |
--- |
research-mab |
08/19/1966 Harding Marker replaced. Very quiet this morning. |
| 7191 |
18 Aug 1966 @ 1130 |
--- |
research-mab |
08/18/1966 Harding – boiling heavily – water one to two feet out of vent 11:30am. Erupted 2:49 (in rain) |
| 7188 |
17 Aug 1966 @ 0810 |
--- |
research-mab |
08/17/1966
Harding – violent sloshing inside; nothing visible. 8:10 a.m. |
| 7185 |
16 Aug 1966 @ 1445 |
--- |
research-mab |
08/16/1966
Harding – Quiet {a.m.}.
Gurgling strongly @ 245pm |
| 7183 |
15 Aug 1966 @ 0800 |
--- |
research-mab |
08/15/1966 Harding – Quiet & serene. No H2O audible. |
| 7175 |
12 Aug 1966 @ 0950 |
--- |
research-mab |
08/12/1966
Harding Water splashing to just below vent opening – and occasionally above. Temp 201º 950am |
| 7167 |
11 Aug 1966 @ 0800 |
--- |
research-mab |
08/11/1966
Harding - No action during night. Sound of water splashing nearer surface- smell of cooking wood still very strong in area. Steam from Harding smells of it. |
| 6641 |
04 Jun 1964 @ 0800 |
--- |
research-mab |
06/04/1964
Water level in Harding down. Pool NE of Ledge milky, overflow has stopped.
{AM-no time} |
| 6642 |
03 Jun 1964 @ 0800 |
--- |
research-mab |
06/03/1964
Harding Geyser Crater filled during the night. {AM -no time} |
| 6636 |
31 May 1964 @ 1800 |
--- |
research-mab |
05/31/1964
Harding Geyser low – lost most water. |
| 6633 |
17 May 1964 @ 1200 |
--- |
research-mab |
05/17/1964 Harding Geyser may have erupted few feet at at some time. Temp at 12:00 pm was 200ºF. Water level still up |
| 6632 |
17 May 1964 @ 0800 |
--- |
research-mab |
05/17/1964 Temperature at Harding Geyser 202ºF. Water level up. {am} |
| 6635 |
16 May 1964 @ 1800 |
--- |
research-mab |
05/16/1964
Harding Geyser water level dropped on 9 May. Has filled up again today to point of about overflowing. |