The grids are based on U.S. "state plane" system - I think.
Forgot to ask the Drafting Supervisor today.
The increments are 1066.666......, and 933.333.......
Here is a little more data:
062,25,6,030933,112933,032000,113866
062,25,7,028800,112000,029866,112933
062,25,8,029866,112000,030933,112933
062,25,9,030933,112000,032000,112933
063,01,1,032000,125066,033066,125999
063,01,2,033066,125066,034133,125999

The maps are arranged 17 wide by 12 high. Some maps around the edges are
nonexistant because the area in question is not rectangular.
Map 001, which happens to be one of the missing, would be in the upper right corner.

There are 25 grids per map and 9 subgrids per grid.

Thanks

In reply to Re: Search file of coordinates by Anonymous Monk
in thread Search file of coordinates by Anonymous Monk

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