As many as I know off the top of my head.

On a mountain in Virginia
Stands a lonesome pine
Just below is the cabin home
Of a little girl of mine.
Her name is June and very very soon
She'll belong to me
For I know she's waiting there for me
'Neath that lone pine tree.

In the Blue ridge mountains of virginia
On the trail of the lonesome pine
In the pale moonshine
Our hearts entwine
Where she carved her name and I carved mine
Oh June..like the mountains I'm blue
Like the pine I am lonesome for you
In the blue ridge mountains of Virginia
On the trail of the lonesome pine.

(Actually I think thats all there is, certainly that,s all there is in the L&H movie, except stan does both a low and high chorus after being bonked with a mallet. Ah traditiom, its a wunnerful thing.)