Google Lake George Minyan and Saratoga Chabad. The first link for both has some good info there, just call to make sure its current (as far as Minyanim). Travelodge is between Lake George village (the lake, a Price Chopper with a Kosher section and gift shop type stores) and Queensbury (the next town- there are some good outlet stores there and you can get good sales if you go at the end of August). I think Travelodge gives a discount if you mention the Lake George Minyan.
(Sorry I know that was wordy)
(There is a Wal Mart in Queensbury and you can get some things there (no Kosher section, but some stuff with an OU) and a Price Chopper with a Kosher section but don’t plan to stock up there.)