The Continuum of Care (CoC) Program is a federal program designed to promote a communitywide commitment to the goal of ending homelessness by providing funding for permanent housing, supportive services, rapid re-housing, and permanent supportive housing for homeless individuals, youth and families.
Strongholds are underground structures found in Minecraft after Beta 1.8, only three strongholds spawn per map. Most Strongholds have several Mob Spawners, an abundance of three types of Stone Brick, Stone Slabs, Cobblestone and Chests with randomized loot.
Update - note that wiki Stronghold entry currently says, All Strongholds are located at random in a radius between 640 and 1152 blocks from the origin, 0/0.. I also note the difference in those two numbers is 512, so the spawn range seems to be a 512-block thick torus (or doughnut-shaped).