Mills bomb rifle grenade by attaching a metallic rod to its base. This rod-type rifle-grenade had an effective range of about 150 yards. The operating procedure was to insert the Mills bomb rod down the barrel of a standard rifle, put a special blank cartridge in the rifle's chamber, place the rifle stock on the ground, then pull the Mills bomb's safety pin, releasing the safety spoon and immediately fire the rifle. If the soldier did not launch the grenade quickly, the grenade's fuse would time out and explode. The British soon developed a simple cradle attached to the rifle's bayonet lug
Interstate 70 in Colorado the Rockies before rejoining I-70. US 24 is known as the Highway of the Fourteeners, from the concentration of mountains exceeding along the highway corridor. Along the ascent, I-70 serves the ski resort town of Vail and the ski areas of Beaver Creek Resort, Vail Ski Resort and Copper Mountain. The construction of the freeway over Vail Pass is also listed as an engineering marvel. One of the challenges of this portion is the management of the wildlife that roams this area. Several parts of the approach to the pass feature large fences that prevent wildlife from crossing the freeway