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Microbiology of hot springs in the Western USA
This page is still under construction, as we move through the peer-review process.
ATTENTION: The following information is provided for research purposes only, and is in no way meant to promote or endorse these locations for recreation. Many of these hot springs are on private land or in restricted areas, and should not be visited without proper permit. Further, many hot springs are dangerous and can cause serious injury or death! We advise against approaching these hot springs without proper gear and training.
Alvord Desert
AA01 - Mickey Hot Springs
Approximate lat 42.7, lon -118.3
22 metagenomic samples from 4 annual surveys
25 bacterial and 0 archaeal high-quality MAGs
pH 8.36, temperature 51.8°C  (last measured 2024.09.08)

AA03 - Mickey Hot Springs
Approximate lat 42.7, lon -118.3
24 metagenomic samples from 4 annual surveys
45 bacterial and 4 archaeal high-quality MAGs
pH 8.8, temperature 96.3°C  (last measured 2024.09.08)

Borax Lake
AB02
Approximate lat 42.3, lon -118.6
8 metagenomic samples from 4 annual surveys
20 bacterial and 4 archaeal high-quality MAGs
pH 6.96, temperature 78.9°C  (last measured 2024.09.10)

AB03
Approximate lat 42.3, lon -118.6
8 metagenomic samples from 4 annual surveys
17 bacterial and 3 archaeal high-quality MAGs
pH 7.21, temperature 92.3°C  (last measured 2024.09.09)

AB04
Approximate lat 42.3, lon -118.6
4 metagenomic samples from 4 annual surveys
18 bacterial and 3 archaeal high-quality MAGs
pH 6.98, temperature 75.7°C  (last measured 2024.09.10)

AB07
Approximate lat 42.3, lon -118.6
6 metagenomic samples from 4 annual surveys
10 bacterial and 3 archaeal high-quality MAGs
pH 7.38, temperature 45.7°C  (last measured 2024.09.10)

AB08
Approximate lat 42.3, lon -118.6
10 metagenomic samples from 4 annual surveys
15 bacterial and 6 archaeal high-quality MAGs
pH 6.98, temperature 86.5°C  (last measured 2024.09.10)

AB09
Approximate lat 42.3, lon -118.6
5 metagenomic samples from 4 annual surveys
7 bacterial and 1 archaeal high-quality MAGs
pH 7.22, temperature 85.6°C  (last measured 2024.09.10)

AB11
Approximate lat 42.3, lon -118.6
18 metagenomic samples from 4 annual surveys
26 bacterial and 9 archaeal high-quality MAGs
pH 7.35, temperature 82.2°C  (last measured 2024.09.10)

AB20
Approximate lat 42.3, lon -118.6
4 metagenomic samples from 4 annual surveys
8 bacterial and 1 archaeal high-quality MAGs
pH 6.1, temperature 33.8°C  (last measured 2024.09.09)

AB22
Approximate lat 42.3, lon -118.6
24 metagenomic samples from 4 annual surveys
41 bacterial and 9 archaeal high-quality MAGs
pH 7.2, temperature 69.9°C  (last measured 2024.09.09)

AB31
Approximate lat 42.3, lon -118.6
4 metagenomic samples from 4 annual surveys
8 bacterial and 1 archaeal high-quality MAGs
pH 6.93, temperature 87.7°C  (last measured 2024.09.10)

AB32
Approximate lat 42.3, lon -118.6
4 metagenomic samples from 4 annual surveys
9 bacterial and 1 archaeal high-quality MAGs
pH 7.08, temperature 66.2°C  (last measured 2024.09.10)

AB35 - Borax Lake
Approximate lat 42.3, lon -118.6
5 metagenomic samples from 3 annual surveys
4 bacterial and 1 archaeal high-quality MAGs
pH 7.74, temperature 33.4°C  (last measured 2024.09.09)

Soldier Meadows
AM01
Approximate lat 41.4, lon -119.2
33 metagenomic samples from 4 annual surveys
42 bacterial and 0 archaeal high-quality MAGs
pH 8.83, temperature 53.1°C  (last measured 2024.09.12)

AM02
Approximate lat 41.4, lon -119.2
29 metagenomic samples from 4 annual surveys
28 bacterial and 2 archaeal high-quality MAGs
pH 8.75, temperature 56.6°C  (last measured 2024.09.12)

Black Rock Desert
AR01 - Double Hot Springs
Approximate lat 41.1, lon -119
11 metagenomic samples from 4 annual surveys
15 bacterial and 1 archaeal high-quality MAGs
pH 7.56, temperature 79.1°C  (last measured 2024.09.13)

AR08 - Casey hot springs
Approximate lat 41, lon -119
4 metagenomic samples from 1 survey
4 bacterial and 0 archaeal high-quality MAGs
pH 7.01, temperature 79.9°C  (last measured 2021.09.14)

AR10 - Black Rock Hot Springs
Approximate lat 41, lon -119
10 metagenomic samples from 2 annual surveys
23 bacterial and 0 archaeal high-quality MAGs
pH 7.58, temperature 50°C  (last measured 2024.09.13)

AR11 - Trego hot springs
Approximate lat 40.8, lon -119.1
4 metagenomic samples from 1 survey
6 bacterial and 1 archaeal high-quality MAGs
pH 9.05, temperature 40.7°C  (last measured 2022.08.03)

Buffalo Valley/Winnemucca
AW01
Approximate lat 40.4, lon -117.3
2 metagenomic samples from 1 survey
10 bacterial and 0 archaeal high-quality MAGs
pH 6.66, temperature 55.6°C  (last measured 2023.08.06)

AW03
Approximate lat 40.4, lon -117.3
1 metagenomic sample from 1 survey
0 bacterial and 0 archaeal high-quality MAGs
pH 7.18, temperature 27.8°C  (last measured 2023.08.06)

Yellowstone National Park
AY01 - MNN013
Approximate lat 44.5, lon -110.8
26 metagenomic samples from 4 annual surveys
17 bacterial and 2 archaeal high-quality MAGs
pH 7.75, temperature 92.2°C  (last measured 2024.08.20)

AY02 - MRCHSGNN170
Approximate lat 44.5, lon -110.8
22 metagenomic samples from 4 annual surveys
25 bacterial and 2 archaeal high-quality MAGs
pH 7.5, temperature 59.3°C  (last measured 2024.08.20)

AY03 - Rabbit Creek Source Pool
Approximate lat 44.5, lon -110.8
29 metagenomic samples from 4 annual surveys
20 bacterial and 6 archaeal high-quality MAGs
pH 9, temperature 85.9°C  (last measured 2024.08.22)

AY04 - MNN029
Approximate lat 44.5, lon -110.8
31 metagenomic samples from 4 annual surveys
27 bacterial and 1 archaeal high-quality MAGs
pH 8, temperature 72.5°C  (last measured 2024.08.23)

AY05 - UCGNN039
Approximate lat 44.5, lon -110.9
14 metagenomic samples from 3 annual surveys
15 bacterial and 1 archaeal high-quality MAGs
pH 9, temperature 71.5°C  (last measured 2024.08.23)

AY06 - UCGNN017
Approximate lat 44.5, lon -110.9
18 metagenomic samples from 4 annual surveys
11 bacterial and 3 archaeal high-quality MAGs
pH 8.75, temperature 88.4°C  (last measured 2024.08.22)

AY07 - Mushroom Spring
Approximate lat 44.5, lon -110.8
30 metagenomic samples from 4 annual surveys
16 bacterial and 1 archaeal high-quality MAGs
pH 7.5, temperature 63.2°C  (last measured 2024.08.24)

AY08 - Octopus Spring
Approximate lat 44.5, lon -110.8
24 metagenomic samples from 4 annual surveys
13 bacterial and 9 archaeal high-quality MAGs
pH 9, temperature 90.8°C  (last measured 2024.08.21)

AY10
Approximate lat 44.5, lon -110.8
1 metagenomic sample from 1 survey
0 bacterial and 5 archaeal high-quality MAGs
pH , temperature 82.9°C  (last measured 2024.08.23)

AY11
Approximate lat 44.5, lon -110.8
14 metagenomic samples from 4 annual surveys
20 bacterial and 12 archaeal high-quality MAGs
pH , temperature °C  (last measured 2024.08.23)

AY12
Approximate lat 44.5, lon -110.9
2 metagenomic samples from 1 survey
1 bacterial and 0 archaeal high-quality MAGs
pH 7.16, temperature 67.3°C  (last measured 2021.08.31)

Upper Alkali Lake
LS01 - Seyferth (Chicken) Hot Springs
Approximate lat 41.6, lon -120.1
3 metagenomic samples from 1 survey
7 bacterial and 2 archaeal high-quality MAGs
pH 6.8, temperature 82.9°C  (last measured 2023.09.22)

LS02 - Seyferth (Chicken) Hot Springs
Approximate lat 41.6, lon -120.1
3 metagenomic samples from 1 survey
7 bacterial and 5 archaeal high-quality MAGs
pH 6.8, temperature 85°C  (last measured 2023.09.22)

Bridgeport
LT01 - Travertine Hot Springs
Approximate lat 38.2, lon -119.2
3 metagenomic samples from 1 survey
2 bacterial and 0 archaeal high-quality MAGs
pH 6.77, temperature 43.5°C  (last measured 2023.09.20)

LT12 - Travertine Hot Springs
Approximate lat 38.2, lon -119.2
3 metagenomic samples from 1 survey
7 bacterial and 0 archaeal high-quality MAGs
pH 6.77, temperature 44.2°C  (last measured 2023.09.20)

LT16 - Travertine Hot Springs
Approximate lat 38.2, lon -119.2
4 metagenomic samples from 1 survey
14 bacterial and 0 archaeal high-quality MAGs
pH 6.79, temperature 71.3°C  (last measured 2023.09.21)

Long Valley
LV02 - Shepherd hot spring
Approximate lat 37.7, lon -118.8
4 metagenomic samples from 1 survey
8 bacterial and 0 archaeal high-quality MAGs
pH 6.77, temperature 48.3°C  (last measured 2023.09.19)

Dixie Valley, Stillwater range
LD01 - Dixie Springs
Approximate lat 39.8, lon -118.1
2 metagenomic samples from 1 survey
10 bacterial and 0 archaeal high-quality MAGs
pH 8.06, temperature 68.8°C  (last measured 2023.08.11)

Dixie Valley
LH02 - Hydra (Hyder) Hot Springs
Approximate lat 40, lon -117.7
2 metagenomic samples from 1 survey
6 bacterial and 0 archaeal high-quality MAGs
pH 7.02, temperature 54.8°C  (last measured 2023.08.11)

LH03 - Hydra (Hyder) Hot Springs
Approximate lat 40, lon -117.7
3 metagenomic samples from 1 survey
7 bacterial and 1 archaeal high-quality MAGs
pH 6.53, temperature 63.2°C  (last measured 2023.08.11)

Buffalo Valley
LB01 - Buffalo Valley Hot Springs
Approximate lat 40.4, lon -117.3
1 metagenomic sample from 1 survey
5 bacterial and 0 archaeal high-quality MAGs
pH 6.78, temperature 63.9°C  (last measured 2023.08.05)

LB02 - Buffalo Valley Hot Springs
Approximate lat 40.4, lon -117.3
1 metagenomic sample from 1 survey
7 bacterial and 0 archaeal high-quality MAGs
pH 6.58, temperature 65.7°C  (last measured 2023.08.05)

LB04 - Buffalo Valley Hot Springs
Approximate lat 40.4, lon -117.3
1 metagenomic sample from 1 survey
3 bacterial and 0 archaeal high-quality MAGs
pH 7.02, temperature 61.8°C  (last measured 2023.08.05)

LB07 - Buffalo Valley Hot Springs
Approximate lat 40.4, lon -117.3
1 metagenomic sample from 1 survey
2 bacterial and 0 archaeal high-quality MAGs
pH 6.78, temperature 52.7°C  (last measured 2023.08.05)

Carlin
LU02 - Hot Sulphur Springs
Approximate lat 40.8, lon -116
2 metagenomic samples from 1 survey
5 bacterial and 0 archaeal high-quality MAGs
pH 6.8, temperature 67.2°C  (last measured 2023.08.07)

LU04 - Hot Sulphur Springs
Approximate lat 40.8, lon -116
3 metagenomic samples from 1 survey
6 bacterial and 0 archaeal high-quality MAGs
pH 6.81, temperature 64.4°C  (last measured 2023.08.07)

Monitor Valley
LE01 - Bartine Hot Springs
Approximate lat 39.6, lon -116.4
3 metagenomic samples from 1 survey
8 bacterial and 0 archaeal high-quality MAGs
pH 6.95, temperature 47.8°C  (last measured 2023.08.09)

LP01 - Pott's Springs
Approximate lat 39.1, lon -116.6
1 metagenomic sample from 1 survey
0 bacterial and 0 archaeal high-quality MAGs
pH 7.03, temperature 41.3°C  (last measured 2023.08.09)

LP02 - Pott's Springs
Approximate lat 39.1, lon -116.6
1 metagenomic sample from 1 survey
3 bacterial and 0 archaeal high-quality MAGs
pH 7.03, temperature 45°C  (last measured 2023.08.09)

LP03 - Pott's Springs
Approximate lat 39.1, lon -116.6
2 metagenomic samples from 1 survey
4 bacterial and 0 archaeal high-quality MAGs
pH 6.93, temperature 43.3°C  (last measured 2023.08.09)

Smith Creek Valley
LC02 - Smith Creek Valley Group
Approximate lat 39.3, lon -117.6
1 metagenomic sample from 1 survey
4 bacterial and 0 archaeal high-quality MAGs
pH 7.56, temperature 76.4°C  (last measured 2023.08.10)

LC04 - Smith Creek Valley Group
Approximate lat 39.3, lon -117.6
1 metagenomic sample from 1 survey
4 bacterial and 0 archaeal high-quality MAGs
pH 8.02, temperature 70.7°C  (last measured 2023.08.10)

LC05 - Smith Creek Valley Group
Approximate lat 39.3, lon -117.6
1 metagenomic sample from 1 survey
4 bacterial and 0 archaeal high-quality MAGs
pH 7.71, temperature 76°C  (last measured 2023.08.10)

Railroad Valley
LR01 - Abel Spring
Approximate lat 38.4, lon -115.9
3 metagenomic samples from 1 survey
10 bacterial and 0 archaeal high-quality MAGs
pH 6.63, temperature 45.1°C  (last measured 2023.08.08)


Louca lab. Department of Biology, University of Oregon, Eugene, USA
© 2026 Stilianos Louca all rights reserved