There are great aerial views of Irnham on Google Maps or alternatively on the Bing Maps website.
A detailed map using cartography based on British Ordnance Survey maps can be found on the Streetmap website.
Irnham also features on the new Newton's Trail map, suggesting a driving/biking route for visitors to the area.
route links Woolsthorpe Manor (home of Sir Isaac Newton) in
Colsterworth with Grimsthorpe Castle (ancestral home of the Ancaster