Not for sure if this is the right forum or even Xterra is interested in possible new locations. I Just wanted to pass along a possible location, Snowshoe resort, at Snowshoe WV. It is a popular destination for mountain biking during the summer months, and they even hold Mountain bike races during the summer.
Here is the link:
There are ample trails of varying distances and difficulty, and at the top of the mountain there is a man made lake, that might be able to be used for the swimming portion.
Snowshoe is a popular destination during in the summer and winter and there is ample things to due at the resort. Just thought I would throw it out there and see what the people think?