I hope one page for each trailhead with links to the appropriate destination(s) will eventually be posted.
The concept here is not to have a page with "all" possible trailheads for each destination, but a seperate page for each trailhead. That way, when a person is planning to use a specific trailhead to reach a destination, they can print out the appropriate "trailhead" directions to help while driving, then leave in the car.
There are also situations where a single trailhead can be used to reach more than one destination. Keeping one trailhead per page allows for more flexibility.