Here's the one trap description that I've seen posted from DDXP.
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Crushing Rock; Level 2 Blaster Trap XP 125
A giant boulder follows the route indicated on the map.
Perception: No check necessary to notice the crushing rock.
Trigger: Initiative +5
The trap rolls initiative when combat begins. It has speed 6.
Attack: Standard Action- Melee
Target: All creatures in the same space as the rock.
Attack: +7 vs. Reflex
Hit: 2d6 damage, knock prone, and move that creature to the nearest open space of its choice.
Countermeasures:
A creature who makes an Athletics check (DC 10, or DC 20 without a running start) can jump over its square.
A character adjacent to the rock who makes a successful Strength test (DC 19), the rock’s Speed is reduced by 2. If the rock is reduced to 0 speed, it is disabled.
