I think the red flashing radio tower idea has some merit. It would be like a lighthouse; a beacon of safety to call wayward climbers home. Unlike the ocean, however, Mt. Hood isn't flat, so a system of giant mirrors strategically placed over the entire mountain would reflect the original powerful laser signal from the tower. Just follow the red dots.
In near zero visibility, the tower could emit a loud chirping sound, similar to cross walks for the blind.
Once the laser and sound system was installed, rock concerts could be staged at the Pearly Gates, with proceeds covering the cost of the system.
I'm filing a patent.