Between 1899 and 1926 Colorado put prisoners to work building roads all across the state. A relic of that program is this concrete structure on a timber foundation, resembling an adobe oven, which was used to bake bread for the thirty-man road gangs and their guards. The roof is 4 feet high at the center, curving to 3 feet 3 inches at the walls. When the structure was hot, the coals were raked out and bread was inserted. The opening was sealed by a door and the round smoke hole in the roof was covered while the bread baked in the diminishing heat.