Crater Lake National Park

Stand at the rim and listen. The wind moves through the mountain hemlocks behind you, and somewhere a bird gives a harsh, rattling call. Below you, far below, lies water of a blue so deep it looks almost solid. The air is thin and cool at this height. Even on a summer afternoon, there may be old snow tucked into the shadows at your feet. Take a moment before anything else. Just look.

What you are looking at is not a valley, and it was never a peak. It is the inside of a mountain that is no longer there. Geologists call that vanished volcano Mount Mazama. Roughly 7,700 years ago, it erupted with enormous force. It emptied so much molten rock from beneath itself that the summit collapsed inward. What remained was a vast bowl, called a caldera, which is a crater formed by collapse rather than by an explosion blasting the top away.

The ash from that eruption travelled across much of the Pacific Northwest. Layers of it still sit in the soil hundreds of kilometres from here. And people saw it happen. The ancestors of the Klamath people lived in this region long before the eruption. Archaeologists have found woven sandals in Oregon caves that are older than the Mazama ash. That means human beings were walking this land when the mountain fell.

The Klamath people carry their own account of that day. Their oral tradition tells of a struggle between Llao, a spirit of the world below, and Skell, a spirit of the sky above. In the story, the battle shook the mountain and brought fire and darkness. When it ended, Llao was driven back into the earth, and the mountain was left broken. Many visitors find it moving that a story so old still matches what the rocks show.

After the collapse, the bowl slowly filled. There are no rivers running into this lake, and no rivers running out. Almost all of the water comes from snow and rain falling directly into the caldera. The lake loses water through evaporation and through seepage into the rock. Over centuries, these two forces came into balance. That is why the water level stays fairly steady from year to year.

Here is something that surprises many people. This is the deepest lake in the United States. At its deepest point, the water reaches nearly six hundred metres down. And because no streams carry mud or silt into it, the water is extraordinarily clear. Scientists have measured clarity here that ranks among the highest of any large lake in the world. That clarity is part of the reason for the colour. Clean, deep water absorbs the other colours of sunlight and scatters back mostly blue.

Now find the cone-shaped island rising from the western side of the lake. That is Wizard Island. It is a small volcano that grew after the great collapse, built up by later eruptions on the caldera floor. Look closely and you may see a crater at its summit. Toward the south, if you have the right angle, you may spot a jagged rock formation sitting low on the water. It is called the Phantom Ship, because in certain light it looks like a sailing vessel moving through mist.

There is a stranger traveller on this lake. For well over a century, people have watched a single tree trunk floating upright in the water, its top bleached and weathered above the surface. It is known as the Old Man of the Lake. It drifts with the wind, turning up in different places over the years. Nobody planted it there. The cold water has preserved it for a very long time, and it has become one of the lake's quiet characters.

Most visitors from Jackson County arrive the same way, climbing east and north from the Rogue Valley through forest that grows thicker and colder as the road rises. By the time you reach the park, you are close to two thousand metres above sea level. This height is what makes the winters here so serious. The area receives some of the heaviest snowfall in the country. Snow can stay on the ground deep into summer, and parts of the park close for much of the year.

The idea of protecting this place took years of effort. A man named William Gladstone Steel spent much of his life campaigning for it after he first saw the lake as a young man. In 1902, Crater Lake became a national park, one of the earliest in the United States. Around the rim you will find the stone and timber of Crater Lake Lodge, which opened in 1915. Its heavy walls were built to survive winters that bury the building in snow.

One thing many visitors do not expect is how hard it is to reach the water. The caldera walls are steep and unstable almost everywhere. There is essentially one trail down to the shore, on the north side, at a place called Cleetwood Cove. It is short but steep, and the climb back up is the part people remember. In summer, boat tours sometimes leave from the bottom, and some even stop at Wizard Island.

If you prefer to stay above, a road loops around the entire rim for more than fifty kilometres. Each overlook gives a different view of the same water. Look for the twisted whitebark pines that cling to the edge. Watch for grey and black birds called Clark's nutcrackers, which collect pine seeds and bury them for winter. Many of the trees on this rim may have grown from seeds those birds forgot. The lake itself held no fish at first. The trout and salmon in it today were introduced by people.

Before you leave, look once more at the water. Notice how the colour changes as clouds pass, from a bright, almost electric blue to something darker and quieter. Notice how still it is, even when the wind is moving the trees around you. You are standing on the edge of a mountain that fell thousands of years ago. The silence below you was made by fire, and filled by snow. As you walk away, listen for the wind in the hemlocks again. It was here long before the road, and it will be here long after.