I have compiled a few hundred of the ten of thousands of GPS coordinates useful to climbers. This is an ongoing endeavour that I hope helps you find that crag you've been looking for.
Please help me, help you, by emailing me any new additions or corrections. You can send me a .gpx file, Googlemaps link or just the Lat/Long ##.######'s. Specify whether it's parking, trailhead or base of route.
Below are Points of Interest files in .gpx format [Garmin] that you can download. For other devices you may need to convert formats.