Welcome to the forum. Finding a "hard to get to spot", won't be easy to do. If you are anywhere near Portland. With this invention called the internet; nothing is a secret anymore. And avid steelheaders; are infamous for NOT giving up their "go to" spots.
But I do wish you, the best. My advice is look at mapquest, or googlemaps, find a place and go. Maybe you'll be the one to find a secret spot, of your own.