© AP Photo
A lightning bolt struck as people waited to see the Old Faithful geyser erupt
A lightning bolt struck as people waited to see the Old Faithful geyser erupt
All the visitors were on the boardwalk or walkways around the geyser when the single lightning bolt struck.
One of the nine people hurt was taken to hospital in Idaho for treatment.
Yellowstone spokesman Al Nash told the Associated Press news agency that the 57-year-old man was to be discharged from the hospital on Wednesday evening.
It was not clear what injuries he had suffered.
Seven others were treated at Old Faithful Clinic for tingling, numbness and shortness of breath.
Hundreds of visitors to the park witnessed the incident as they awaited the next eruption of the geyser.
According to Yellowstone National Park, Old Faithful erupts every 35 to 120 minutes for between one-and-a-half and five minutes at a time.
Its is only a week ago or so that there was another report about lightning striking people here on sott, that time in Britain I think. Sign of coming "illumination" of the general populace to what is going on???