demsutm, grid, is developed from the following dems downloaded from:
 http://edcwww.cr.usgs.gov/pub/data/DEM/250/
 
8/06/97  01:03p             9,840,640 albany-e.dem
02/24/94  10:14a             9,840,640 bangor-e.dem
02/24/94  10:15a             9,840,640 bangor-w.dem
02/24/94  09:58a             9,840,640 bath-e.dem
02/24/94  09:58a             9,840,640 bath-w.dem
08/06/97  01:04p             9,840,640 boston-e.dem
08/06/97  01:04p             9,840,640 boston-w.dem
02/25/94  01:57p             9,840,640 campbellton-w.dem
06/09/00  12:35p                     0 dir.txt
02/24/94  10:14a             9,840,640 eastport-e.dem
02/24/94  10:14a             9,840,640 eastport-w.dem
02/25/94  04:03p             9,840,640 edmundston-e.dem
02/25/94  04:05p             9,840,640 edmundston-w.dem
02/14/94  01:50p             9,840,640 fredericton-w.dem
02/24/94  09:59a             9,840,640 glens_falls-e.dem
02/24/94  10:16a             9,840,640 lake_champlain-e.dem
02/24/94  10:15a             9,840,640 lewiston-e.dem
02/24/94  10:15a             9,840,640 lewiston-w.dem
02/14/94  01:50p             9,840,640 millinocket-e.dem
02/25/94  09:14a             9,840,640 millinocket-w.dem
02/24/94  09:58a             9,840,640 portland-e.dem
02/24/94  09:58a             9,840,640 portland-w.dem
02/25/94  09:48a             9,840,640 presque_isle-e.dem
02/25/94  09:49a             9,840,640 presque_isle-w.dem
02/23/94  12:59p             9,840,640 providence-e.dem
02/25/94  09:49a             9,840,640 quebec-e.dem
02/25/94  09:14a             9,840,640 sherbrooke-e.dem
02/25/94  09:15a             9,840,640 sherbrooke-w.dem
02/25/94  09:48a             9,840,640 woodstock-w.dem

These zipped/tarred files were expanded into dems, then converted to grids, using
the AV 3 script Spatial.demshift, which created grids in decimal degrees.  These 
were merged, then projected in ARC using the following proj. file:
input
projection geographic
units dd
datum wgs84 seven
parameters
output
projection utm
units meters
datum nar_d three
zone 19
parameters
end

cellsize is about 79 m ; elevation is in meters, projection NAD83