Each year English Heritage undertake a programme of aerial reconnaissance covering the whole of England. The reconnaissance is undertaken by two Aerial Survey teams based in the Swindon and York offices. The York office staff cover the northern counties (Cumbria, Northumberland, Durham, Tyne and Wear, Cleveland, North Yorkshire, East Riding of Yorkshire, West Yorkshire, South Yorkshire, Lancashire, Merseyside, Cheshire, Staffordshire, Derbyshire, Nottinghamshire and Lincolnshire). For the financial year 2000/1, the northern reconaissance programme made 42 flights (a total of 118.2 flight hours) and photographed 963 targets. Further details are given below:-In the first quarter of the year (01/04/01 to 30/06/01) a short flight with the BBC was done and recording of Northcoates Bloodhound missile site and airfield in advance of demolition was carried out. Two flights were made visiting the majority of Durham SAMs. Flights in June in North/South/West Yorkshire, Lincolnshire and Nottinghamshire, showed good potential in wheat on the limestone and chalk areas but the barley appeared generally unresponsive. Low-lying areas, apart from the Lincs Fens, looked less promising. In the second quarter of the year (01/07/01 to 20/09/01) favourable flying weather and improving ground conditions led to a very busy second half of July and start to August. Good cropmark conditions were mainly restricted to the free-draining chalks and limestone, but by late July were spreading onto the lower-lying sands and gravel. Also some parching in grass was being noted particularly in the Vale of York/Mowbray. Some of the highlights of the discoveries were a new fort annex at Newton Kyme and some long barrows in Lincolnshire. During exploratory flights in areas that subsequently proved less fruitful for cropmarks (Notts, Derbys and Staff) good progress was made in Scheduled Monument recording. Flights over Lincoln, Newcastle and various EH properties in Northumberland and North Yorkshire produced some good illustrative material. At short notice a requested job along the line of the new dual carriageway on the A46 was undertaken for Blaise Vyner.In the third quarter (01/10/01 to 31/12/01) seasonal weather conditions severely restricted flying. Three flights concentrated on requested targets in West Yorks, Derbyshire and Cumbria and general recce in these areas and Pennine Lancashire.In the fourth quarter (01/01/02 to 31/03/02) a flight in February concentrated on requested targets in Yorkshire. Flights in March revisited some of these sites but concentrated on Carlisle, the North Pennines and Hadrian¿s Wall. A transit over York en route northwards resulted in the discovery of two new Roman temporary camps (Huntington South Moor, below). Ground visiting and assessment of photography showed that features photographed 12/12/2001 on Hallin Fell overlooking Ullswater in the Lake District are the remains of a large well preserved hill top enclosure of probable Neolithic date and previously unrecorded.