site lat lon depth temp_2012 temp_2013 temp_2014 temp_2015 site_descrip Marker_113 45.9228 -129.9883 1521 28 24 25 25 Basalt-hosted diffuse hydrothermal vent field on the edge of a lava flow collapse zone Marker_33 45.9332 -129.9823 1516 nd 27 20 34;40 Basalt-hosted diffuse hydrothermal vent field flowing from the cooled 2011 eruptive lava flow Anemone_ASHES 45.9333 -130.0137 1543 29 29 35 20 Diffuse hydrothermal venting emanating from the top of a 0.5 m tall sulfide mound within 10 m of the Hell metal sulfide hydrothermal edifice emitting 286-297 C fluid Boca 45.9277 -129.9825 1517 10 7 nd nd Basalt-hosted diffuse hydrothermal vent field flowing from the cooled 2011 eruptive lava flow Fuzzy_Tubeworm_Bush_ASHES 45.9336 -130.0137 1544 28 nd nd nd Basalt-hosted diffuse hydrothermal venting within 10 m of the Inferno metal sulfide edifice emitting 319 C fluid Skadi 45.9235 -129.9828 1521 nd 35 nd nd Basalt-hosted diffuse hydrothermal vent field on the edge of a lava flow collapse zone within 10 m of a metal sulfide hydrothermal edifice emitting 218 C hydrothermal fluid International_District 45.9266 -129.9795 1515 nd 24 nd nd Diffuse hydrothermal venting emanating from the base and side of the El Guapo metal sulfide hydrothermal edifice emitting 342 C hydrothermal fluid Marker_N3 45.9437 -129.9852 1522 nd 19 nd nd Basalt-hosted diffuse hydrothermal vent field flowing from the cooled 2011 eruptive lava flow Coquille 45.9336 -130.0132 1533 nd 34 nd nd Basalt-hosted diffuse hydrothermal venting within 10 m of the Vixen anhydrite-forming hydrothermal venting emitting 344 C hydrothermal fluid North_Rift_Zone 46.0747 -129.9951 1716 nd nd nd 19 Basalt-hosted diffuse hydrothermal vent field flowing from the cooled 2015 eruptive lava flow 15 km north of the axial summit caldera