2638 - Beam of light
2012 - Slot Canyon - A slot canyon begins as a hairline crack in rock, which is beaten upon by rapidly flowing water until it becomes larger; finally over a vast period of time and a multitude of flash floods have eroded the rock, it forms a narrow crevice. The final result is a claustrophobic caverns, twisting and turning, often allowing only a glitter of glowing light into its depths. Wind, water and time carve lines on the walls of some slot canyons where flowing patterns run fluidly like the wind that help make them. An irregularity can cause water to swirl forming a hollow, then another and another until the canyon is a series of walls and hollows.