Patent ID: 6874698

Claim:
A system of modular artificial rocks with running water comprising: a. a reservoir with an open top; b. a crevice rock at least partially overlying the reservoir and comprising: i. a floor having opposed exposed and hidden surfaces that define a first wall, the first wall defining a first hole therethrough; ii. a barrier surrounding the floor and having exposed and hidden surfaces that define a second wall that is joined to the first wall, the second wall defining a second hole therethrough at a selected distance above the floor; and iii. a convex portion on the floor hidden surface that is over the reservoir; and c. means for pumping water from the reservoir to the first hole in the crevice rock, so that water pumped into the crevice rock first hole rises to the second hole and flows therethrough to the barrier hidden surface and runs down the convex portion of the floor and falls into the reservoir.