The Crowley Lake Stone Columns, also known as the Crowley Lake Columns or the Fossil Falls Tufa Towers, are a unique geological formation located near the town of Mammoth Lakes in California, USA. These fascinating stone columns are a result of volcanic activity and the subsequent interaction of hot springs with the limestone bedrock, creating an otherworldly landscape of towering spires and intricate rock formations.

The Crowley Lake Stone Columns were formed approximately 760,000 years ago during a period of volcanic activity in the region. As hot volcanic ash and gases were released from the ground, they mixed with groundwater rich in calcium carbonate. Over time, this chemical reaction led to the formation of calcium carbonate deposits, which accumulated and solidified around the springs and vents, creating the tufa rock formations that we see today.

The tufa towers at Crowley Lake are characterized by their tall, slender columns, which can reach heights of up to 20 feet or more. The columns are intricately shaped and textured, with a variety of patterns, ridges, and grooves carved into the rock surfaces. The unique appearance of the stone columns, combined with their remote and desolate surroundings, creates a surreal and otherworldly landscape that is both captivating and mysterious.

The Crowley Lake Stone Columns are located within the Inyo National Forest and are accessible via a short hike from a designated parking area off U.S. Route 395. Visitors can explore the area on foot and marvel at the intricate tufa formations, as well as enjoy panoramic views of the surrounding desert landscape and the nearby Sierra Nevada mountains.

While visiting the Crowley Lake Stone Columns, it's important to respect the natural environment and adhere to Leave No Trace principles to preserve the delicate geological formations and the surrounding ecosystem. This includes staying on designated trails, avoiding climbing or touching the tufa formations, and packing out any trash or litter.