Nevada Falls and rainbow in Yosemite National Park, California

We were on a hike in Yosemite National Park and were between Vernal and Nevada Falls when we saw this view of Nevada Falls from next to the Merced River.

Nevada Falls is 594 feet tall and was gushing with water during our visit after a good snowfall year.  This flow of water kicked up a huge mist in front of the falls and produced this brilliant spectrum.

Vernal and Nevada Falls are both in Little Yosemite Valley, which, like many of Yosemite's features, was carved out by glaciers.

Remember, it's not just a picture, it's a story.

National Trails Day, June 3, 2017

Remember, it's not just a picture, it's a story!

Yosemite's Chilnualna Falls, near Wawona, viewed from 3 miles up the trail

This is Chilnualna Falls in Yosemite National Park, but not in the world-famous valley. South of Yosemite Valley is the historic area called Wawona. From the Wawona area, you can drive past an area called Redwood Cottages and reach the trailhead that leads to Chilnualna Falls. You can't see the tallest falls along Chilnualna Creek from Wawona because there's a big granite wall in the way. You have to hike up the trail about 3 miles before you can see it from the side, as in the photo above. Another mile up the trail, and you can stand at the brink of the falls. In about 4 miles of trail you gain about 2000 feet (about 700 meters) in elevation. This picture was taken in late spring after a wetter than average winter. During late summer, the water can be a bit warmer and the flow almost stopped. It was during a trip to the falls in August that Rick saw people soaking in the pools above the falls like hot tubs. There's even a pool right at the brink, so that people soaking in the "hot tub" can look over the edge and see the 240 foot drop right next to them. Backcountry camping is allowed beyond the falls.

As the water falls over the edge, it flows down along the granite wall, but also encounters pools along the way, causing the water to eject out away from the wall. You can see that effect in this photo. We also lucked into arriving at the right time of day to see the mist of Chilnualna Falls interact with sunlight to make a rainbow.

Remember, it's not just a picture, it's a story!

Lone Star Geyser, Yellowstone backcountry, double rainbow

A double rainbow in the mist of the Lone Star Geyser in the backcountry of Yellowstone National Park.  A three-mile hiking/biking path leads to this geyser.  When we watched this eruption, only five other people watched it with us.  Contrast that with watching an Old Faithful Geyser eruption with perhaps hundreds of people.

This geyser's cone is listed in "The Geysers of Yellowstone" as being over 9 feet tall making it one of the largest cones in the park.  An eruption occurs about every 3 hours and is typically 30 to 40 feet high and can last more than 10 minutes.

Remember, it's not just a photo, it's a story.

Vernal Falls and rainbow

A view of an imposing granite wall that the Merced River tumbles over to form Vernal Falls.  A rainbow crosses in front of the waterfall, nearly every afternoon since this wall faces west.  This view is from the Mist Trail, a popular hike for visitors to Yosemite Valley.  Hikers on this trail often wear ponchos or other rain gear to keep from getting thoroughly soaked by the mist, especially in the spring and early summer.  It always amazes us how trees can seem to cling and grow in seemingly hostile places. Just down from the brink, you can see a conifer growing on a ledge, just above the upper end of the rainbow.

The trail eventually reaches the top of the falls via stone steps with railings. The railing extends from the trail to the brink of the falls and slightly upstream along the Merced River.  It's important to keep behind the railing.  Some people who have chosen not to have been swept over the edge to their death.  Although we refer to Yosemite as a park, it is still a wild place with inherent dangers that need to be respected.

Remember, it's not just a photo, it's a story!

Yosemite Falls, upper and lower, with a lunar rainbow, or moonbow, with stars.

The mist from Yosemite Falls can turn moonlight into a moonbow, or lunar rainbow, around the time of the full moon. It also depends on how much precipitation the area had during the winter and sping, since the misting water droplets coming off the falls is what separates the white light into the spectrum of colors. The moon-caused bow is dim enough that human eyes can't distinguish the colors. We have rods and cones in our eyes, cells that respond to light. The rods respond to brightness and don't detect color, but the cones do respond to color, but only if their light has enough intensity. Moonlight isn't usually intense enough to trigger the cones. When looking at this moonbow, we only saw an arc of ghostly white light, but the camera's time exposure, 30 seconds, does pick up the colors that our eyes can't see.

This perspective also includes the upper falls and stars so that it's easier to tell that it was taken at night. To get here, you have to be willing to do a little scrambling off of the paved path over granite that is sometimes slick, right up to the base of the cliffs, but it's well worth it. You also should bring along a dry cloth to wipe the droplets off of your lens, since it will get wet. Wearing rain gear to keep yourself dry and protected from the wind is a good idea, too. Waterfalls create their wind. The falling water drags air down with it. 

This image was two shots, lower and upper, then merged together to create one larger image. The two were taken on June 2, 2012. We tried again this year, 2013, but last year's results were better.

Remember, it's not just a photo, it's a story!

Lower Yosemite Falls showing a rainbow from the mist

On a camping trip to Yosemite in March of 2010, we were seeking rainbows in the waterfalls and the nearly full moon rising next to Half Dome. It turned out to be a very successful trip. The moon rising next to Half Dome you can see in an earlier post. The morning of that same day, we hiked out to Yosemite Falls from Camp 4 and arrived just in time to see this prominent rainbow, or mistbow, in Lower Yosemite Falls.

Fortunately, there was no wind this morning, so the mist from the falls went straight out from the wall and across the cliff face where the mistbow made its appearance. We were closer to the falls than the bridge and down a little toward Yosemite Creek, so that our view could be looking up enough to include the sky in the image. This image is the result of 2 images being merged together. The bottom image included the rainbow, the second one included the sky and didn't include the rainbow at all. We didn't want to try merging two images with separate parts of the rainbow because it could've presented a greater challenge in making them fit together seamlessly. This image has been cropped into a square shape.

Remember, it's not just a picture, it's a story!

Castle Geyser and rainbow

Castle Geyser is in the same geyser basin as the world-famous Old Faithful Geyser, the Upper Geyser Basin, in Yellowstone National Park.  Its eruptions are among those that the Park Service can predict and they post those predictions at the Old Faithful Visitor Center and on an informational plaque in front of the geyser itself.

Castle Geyser typically erupts every 10-12 hours with a 20 minute hot water phase reaching up to 90 feet in height followed by a steam phase lasting from 30 to 40 minutes.  This photo was taken during the steam phase of Castle's eruption and a light wind was blowing water droplets from the steam column to the right where they formed this rainbow.

Remember, it's not just a photograph, it's a story.

Yosemite Falls double moonbow

If you arrive in Yosemite in spring and early summer and around the time of the full moon, you might want to hike to Yosemite Falls and view a moonbow, or lunar rainbow or a waterfall mistbow. A moonbow is a rainbow caused by moon light, rather than direct sunlight. When viewing this phenomenon, your own eyes can't see the color of the spectrum showing through the mist of the water, but when you take a long exposure, 20 to 30 seconds, with your camera, the colors appear in the final image. The night of the full moon is the brightest, but up to 2 days before or after the night of the full moon will also work.

To work on this image, we went on the night of the full moon and lower Yosemite Falls was very crowded with photographers. A lot of people know about this event now. Many saw some good results. But this image was captured the night after the full moon. Rick went back the next night and almost had the place to himself, and the double moonbow was already showing as soon as he arrived. To make sure people viewing this image can tell that it was taken at night, we included some of the sky with stars showing at the top of the frame. 

One of the great challenges of taking this sort of image is that you need the mist from the falls in order to get the moonbow, but then if the mist reaches high enough, it can make the rest of the image look fuzzy. There's also a very good chance that you'll get wet during the process of capturing the image. Including stars in the sky helps convince people that the image was taken at night, but a very long exposure can allow enough time for the Earth's rotation to cause the stars to become streaks.

You can get predictions for this year's (2013) best moonbow viewing dates and times from the Texas State University's Astronomy Department's web site. The direct link to this year's moonbow in lower Yosemite Falls is at: uweb.txstate.edu/~do01/moonbows2013loweryosemitefall.html.

Remember, it's not just a picture, it's a story!

Rainbow over Leigh Lake, Grand Teton National Park, 1975

In 1975, we were hiking in Grand Teton National Park up Cascade Canyon, over Paintbrush Divide, and then down Paintbrush Canyon. We had just about every kind of weather condition that day. Sunny and clear when we started, cloudy later on, rain, some sleet, snow when we crossed over Paintbrush Divide. On the way down Paintbrush Canyon we saw rain clouds precipitating to the east and then this rainbow appeared over Leigh Lake. The bands of light and dark added depth to the image, plus the colorful rainbow really stood out. By the time we got back to our car, we were so sore we could hardly move, but it was worth it.

Remember, it's not just a picture, it's a story.