A quick-lock-quick-release device for attaching a boot to a foot plate which doubles as an ice crampon or mounting plate for an alloy snowshoe is provided. The lock-release foot plate design is such that it can readily be adjusted for any size of boot by simply moving the lock-release lever on the foot plate. This design also lends itself to the use of the Arctic vapor barrier boots used by the military. In addition, three crampon designs are included as well as a quick release mechanism for attachment/detachment of the foot plate to/from the snowshoe without the necessity of tools. An articulated foot plate for use with an alloy snowshoe for running in snow is also shown. The articulated foot plate consists of two pieces, a toe portion and a heel portion, which are hinged together around the pivot pin to allow for flexing of the sole of the wearer's shoe during running.