In the prosthetic industry a trans-tibial prosthetic leg is often referred to as a BK or below the knee prosthesis while the trans-femoral prosthetic leg is often referred to as an AK or above the knee prosthesis.
The City of Black Hawk is located 25 miles West of Denver. Through Historic Central City. 1  from Denver take Interstate 70 West. 2  I-70 exit 243 to Central City/Hidden Valley.
American Black Bear. I have not been able to get a photo of one of these yet, so this is a placeholder until I do. The first sign is at Elevenmile Lake in Park county, Colorado, and the second one is at the Bear Creek Nature Center in Colorado Springs.