Between 1724 and 1726 Daniel Defoe (best known for Robinson Crusoe and Moll Flanders ) wrote a travel guide - A Tour Thro' The Whole Island of Great Britain. Of Halifax he wrote "... being so surrounded with hills, and those so high as makes the coming in and going out of it exceeding troublesome".
Of course in those days the main mode of transport usually involved a horse and whatever it was pulling. You can imagine that in that case Halifax, being as it is, set in the middle of the Pennine hills wasn't the easiest place to get to and from. Now that we nearly all own a car and hills aren't such an issue any more we find that Halifax is in fact pretty ideally placed for getting just about anywhere. It is only 4 miles from the M62, it's on the busy railway line between Manchester and Leeds, it's pretty much equidistant from West and East coast and is within an hour's drive of the Lake District, the Peak District and the Yorkshire Dales (depending on traffic, obviously).
Although close to a number of other towns and cities (Huddersfield, Bradford, Leeds, Rochdale) Halifax is surrounded by greenery - hills and valleys, woods or moorland can be seen in every direction. To the North is Ovenden Moor, with its wind farm and nearby Ogden reservoir. To the South are Elland Park Woods and North Dean Woods. To the East, towering over the town is Beacon Hill and to the West the deep valleys leading to Hebden Bridge and beyond, or to the vast Saddleworth Moor.