Tag: National Park

Yellowstone National Park: Grand Prismatic Overlook

On By nationalparkswithtIn WyomingLeave a comment
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Wyoming 2023 Trip➤

In September of 2023, my husband and I set out to explore some National Park units in the state of Wyoming. We visited Yellowstone, Grand Teton National Park, The John D. Rockefeller Parkway, and Bighorn Canyon National Recreation Area. In Yellowstone National Park, we hiked to the Grand Prismatic Overlook.

Yellowstone National Park➤

President Ulysses S. Grant signed the Yellowstone National Park Protection Act into law in 1872. This created America’s (and the world’s) first National Park. The US Army managed the park from the late 1800s through 1916 when the National Park Service was created.

The park sits on top of a massive super volcano. As a result, over half of the worlds geysers and geothermal features reside in Yellowstone. It’s also famous for being home to hundreds of animal species, including bears, wolves, bison, elk and antelope. One of our guides compared touring Yellowstone’s Valleys to taking an African Safari.

This park is huge at 3500 square miles in Wyoming, Montana and Idaho. Divided into two large loops, the park road takes visitors to the main sites. The Lower Loop Road is 96 miles while the Upper Loop is 142 miles.

Grand Prismatic Overlook➤

After exploring the Old Faithful area, we continued on the park loop road to the Fairy Falls trailhead. From there, we climbed a half-mile to the observation platform. From there, we could see the entirety of the Grand Prismatic Spring.

The Grand Prismatic Spring, located in Yellowstone National Park’s Midway Geyser Basin, holds the title of the largest hot spring in the United States and the third-largest globally. Geologists from the Hayden Geological Survey of 1871 named it for its vibrant colors reminiscent of a rainbow’s spectrum, reflecting hues of red, orange, yellow, green, and blue. European explorers first documented the spring in 1839, noting its substantial diameter of 300 feet.

The spring’s striking colors emerge from microbial mats surrounding its mineral-rich waters, ranging from green to red depending on factors such as chlorophyll-carotenoid ratios and temperature gradients. Despite the vivid display around its edges, the pool’s center remains sterile due to extreme heat, contributing to its deep blue hue. The Grand Prismatic Spring releases an estimated 560 gallons of scalding water per minute.

Yellowstone Posts➤

Location: Grand Loop Road, Wyoming
Designation: National Park
Date designated/established: March 1, 1872
Date of my visit: September 23, 2023