13 Rocks You Won't Believe Aren't Man-Made!

SolarHatch Updated: 2025-10-13

11. Heart Rock

A monument to the creative ability of nature's erosive powers, Heart Rock is a stunning natural structure near Crestline, California in the San Bernardino National Forest. Hikers, environmentalists, and romantics all have come to love this unusual geological feature—which features a clear heart-shaped depression on its surface. Along with being a beautiful sight, the formation is a remarkable illustration of how over time water erosion can produce complex and apparently deliberate forms in solid rock.
Seeley Creek Falls, a 20-foot waterfall nearby, is mostly responsible for the erosive activity causing Heart Rock to develop. The steady flow of water from the falls over thousands of years has progressively sculpted the heart-shaped pool out of the granite rock face. The intricate interaction of several elements—including the power of the falling water, the mineral makeup of the rock, and the existence of natural fissures or weak areas in the stone—created Heart Rock by erosion.
Heart Rock's granite is a component of the San Bernardino Mountains' bigger geological setting. Mostly made of igneous and metamorphic rocks, these mountains created by tectonic uplifting and volcanic activity millions of years ago are Granite is an igneous rock made from cooled magma; it is usually rather resistant to erosion. But even the toughest stone can be progressively worn down by the continuous flow of water, particularly when focused in a given location.
The depression's heart form is probably the outcome of several elements. The first depression might have developed along a naturally occurring weakness in the rock, such a joint or fracture. The depression grew and sank as water kept running over this location. Water's circular motion inside the developing pool most certainly helped to create the "heart's" lobes' rounded form. The more resistant granite's remaining sections stayed, the unique heart form we now know resulted.
The adjacent Seeley Creek Falls feeds the pool inside Heart Rock, which runs continuously in wet seasons. The falls directly over Heart Rock during moments of strong water flow, producing an amazing visual impact as water flows through the heart-shaped depression. The site's appeal is enhanced by this interaction between the rock formation and the waterfall, which attracts many photographers trying to get the ideal view of water running through the stone heart.
One mile hiking paths across the San Bernardino National Forest grant access to Heart Rock. Although it is very short, this path gives guests an opportunity to enjoy the varied local ecology. Typical of the upper altitudes of Southern California's mountains, the path meanders throughout a mixed conifer forest. Hikers may come across a range of natural plants and animals along the road, including manzanita shrubs, oak trees, and maybe mule deer or some other bird species.
Particularly with the advent of social media and the online sharing of breathtaking natural settings, Heart Rock's appeal has surged dramatically in recent years. The region has gained as well as suffered from this higher visitors. Although it has increased local tourism and heightened awareness of the San Bernardino National Forest's natural beauty, it has also sparked questions on how human activity can affect the delicate habitat around Heart Rock.
Efforts at conservation have been undertaken to safeguard Heart Rock and its surrounds. Visitors are urged to follow Leave No Trace guidelines, keep on approved paths, and avoid harming the natural formation or surrounds. Managing the San Bernardino National Forest, the U.S. Forest Service keeps an eye on the site and can adopt more protective actions if needed to guarantee the long-term survival of this unusual geological feature.
Heart Rock is a potent reminder of the amazing sculpting force of nature and the need of protecting such natural beauties for next generations, not only a gorgeous picture chance. Visitors standing before this heart-shaped pool cut out from solid granite are seeing the outcome of thousands of years of patient, relentless natural processes – a real masterwork of geological workmanship.