mrcondron wrote:
> When you get your wilderness permit at the Mather Ranger
> Station (Hetch Hetchy) you are given a parking permit to
> display in your windshield while your car is parked during your
> hike. At Hetch Hetchy there is no overnight parking at the
> dam. All hiker's cars have to be parked in the backpacker's
> designated parking with the permit visible in the windshield or
> risk towing. This is so nobody will blow up the dam.
A polite but armed ranger will come out and write down the make and license plate of any car passing through the Hetch Hetchy entrance before issuing the day use or overnight parking permit. Even for day users. I've been to quite a few dams with security measures in place. At Hetch Hetchy it isn't even that severe. At Shasta Dam there's armed private security right on the dam. When I entered a visitor center at Glen Canyon NRA (combination NPS visitor center and dam operations headquarters) we weren't allowed to bring in anything larger than a purse or camera bag, and had to go through metal detectors. However - the Jackson Lake Dam in Grand Teton National Park had pretty much no permanent security.