I've handled golf property claims in my day job, but am not working on Greenbrier's. The golf property policies can cover "earthquake" (or "earth movement") which is typically defined to include mudslide, but I am not sure that earthquake coverage is available in California, Pacific NW or the New Madrid Seismic Zone. I have seen coverage for damage to "golf holes", which includes "cut and maintained playing surfaces normal to the operation of a golf course including ,but not limited to, tees, greens, fairways, roughs, driving ranges, bunkers and sand traps." And for other things too, including man-made structures, golf car fleets, trees and landscaping, debris removal, and loss of income from business interruption.