Predictions are shown in Mountain Time.
Eruptions cannot be predicted with absolute certainty and estimates are derived from user reports.
GeyserPrediction
Great FountainGeyserTimes 20:18 ± 2 hours
CastleNPS Jul 10 @ 01:45 ± 1 hour
CastleGeyserTimes Jul 10 @ 02:04 ± 1 hour
GrandGeyserTimes Jul 10 @ 02:20 ± 105 minutes
RiversideGeyserTimes Jul 10 @ 03:49 ± 25 minutes

Predictions courtesy of:

GeyserTimes GeyserTimes
NPS National Park Service

(*) Prediction derived from double interval