Very nice, but I think I'd rearrange things just a mite, for the sake of putting the geographic areas first. Maybe something like this?
Welcome to the Pacific Northwest Gardening forum. Our region is generally considered to include Alaska, British Columbia, Washington, Oregon, Idaho, and northern California (although conditions here vary from temperate rain forests, verdant river valleys, desert plains, high plateaus, and mountains). We are bordered on the west by the Pacific Ocean; bisected by the Coast, Olympic, and Cascade mountain ranges. Our discussions are lively and cordial - please join in.
I think it would be nice to list the general areas first, then expand on it. Seems like it might make things easier for someone who was just skimming.
