Here is a test KMZ that works on my Andriod device:
Please someone, let me know if it does on your Garmin and any comments.
Even the best in GPS and night vision technology won't necessarily get you out of the "shoe" the same day if darkness falls on you. There's no camping there. There's awesome fishing, but some awfully slippery wading. I suggest that if you venture there do so at first light and with a buddy.
This is a scaled down version of the image used to create the KMZ.