Lamplighter Motel – Helena MT Location Details Lewis and Clark County Fairgrounds Street Address 1006 Madison Ave City Helena State Montana Zip Code 59601 Other Area Hotels Lewis and Clark County Fairgrounds, Montana Phone 406-442-9200 Rating (average) (0) Ratings There are no reviews yet. Please login to leave a review. Directions to listing From: Current location Specific Address Travel Mode: Driving Public Transit Walking Cycling