Mount Haku is thought[2] to have first been active 300,000 to 400,000 years ago, with the most recent eruption occurring in 1659.

Because the central part of the mountain has much precipitous terrain, there are very few roads and, as a result, little human intrusion into the area.

Also limiting human intrusion is the designation of the park as a Wildlife Protection Area, covering over 38,061 ha.

[3] The area surrounding Mount Haku is one of the few in Japan that contains outcroppings from the Jurassic period of the Mesozoic era.

These plants can be found on many mountains throughout Japan, but they were first discovered and named along the older hiking trails leading to Hakusan Shrine.

The golden eagle, Ishikawa's prefectural bird, lives on the slopes of Mount Haku.

During the Meiji period, the entire population of ptarmigan on the mountain disappeared; however, sightings of the grouse have recently been recorded by local residents.