Workers at a lumberyard in Cloverdale, California made an extraordinary find on Monday. They found a perfectly intact prosthetic leg with a blue Nike shoe.

Prosthetic Leg From The Sky

They reported the discovery to the Sonoma County Sheriff's Office, which conducted an investigation and solved the mystery of where the object came from.

It turns out the prosthetic limb belongs to 39-year-old Dion Calloway. He said he lost his artificial leg while he was skydiving 10,000 feet in the air on Sunday.

After landing, Calloway and his friends tried to look for the $15,000 prosthetic around the area but did not find it.

"I've jumped with the prosthetic before, but a rush of air got inside this time and it just flew off," Callaway said. "I tried to watch where it was falling, but I was so overwhelmed in that moment I could not keep track."

Calloway was eventually reunited with his leg, which he picked up from the Sheriff's Office in Santa Rosa on Monday afternoon. The artificial limb did not appear damaged at all even after the 10,000-foot fall.

Calloway told the deputies he was glad his leg did not land on anyone and damage things. He also said he will be taking precaution on his next jump to prevent the incident from happening again.

"He promises to make a tether and learn from this but fully plans to stick with his passion," the Sonoma County Sheriff's Office said in a statement.

Lost Natural Leg During Skydiving Incident

Calloway has performed nearly 500 jumps since 2003 and, in fact, lost his natural leg during a skydiving event. He said that while he was attempting a high-speed landing two years ago, he came in too low to the ground and ended up shattering his heel.

He went through physical therapy and medical procedures for over a year and later opted to have his leg amputated below the knee.

The accident, however, did not deter him from pursuing his passion.

"Skydiving is my everything and the people I do it with are my family," he said. "I always seem to come back to it."