----------------------------Original message----------------------------
Ken,
several other ways you might try, in addition to the
Occeasional Papers:
1. the Survey has microfilmed their suerseded sheets. ask for a
copy of the microfilms list, count the relevant rolls and
multiply by 525, the average number of images per reel. the
roll count is somewhat above 400 (400 rolls x 525 images =
210,000 obsolete sheets). unfortunately, 7.5- and 15-minute
sheets are intermingled.
2. the Survey's fiche inventory "Map and Chart Information
System" or Chis Baruth's machine-readable copy of the same
files, Geodex, contain complete sheet inventories and
differentiate by scale. derive full counts from either,
subtract the number of sheets needed for "current coverage"
and let me know how far off my 210,000 sheet guess is.
LC
2 messages-----------------------------Johnnie
-------------------------------------
>Date: Sat, 26 Feb 2000 12:17:14 -1000
>From: Riley Moffat <[log in to unmask]>
>Subject: Query on obsolete USGS topos -Reply
Aloha Ken:
To get a number count of 'obsolete' USGS topo series and to see their
spatial arrangement and location you may want to consult WAML
Occasional Paper #10, "Map Index to Topographic Quadrangles of the
United States, 1882-1940".
Riley Moffat
[log in to unmask]
---------------------------------------------------------------
>Date: Mon, 18 Mar 1996 13:24:03 -1000
>From: Ross Togashi <[log in to unmask]>
>Subject: Re: Query on obsolete USGS topos
Greetings,
Regarding Ken Rockwell's inquiry, I don't have the statistics, but
perhaps the following two publications may be of some help in
providing that information. At the very least, the books may serve
as a checklist and will give you an idea of how complex your
retro-conversion/reclass project will be!
Map index to topographic quadrangles of the United States,
1882-1940, by Riley Moore Moffat. c1985 (WAML Occasional
Paper; no.10).
A cartobibliography of seperately published U.S. Geological
Survey special maps and river surveys, by Peter L. Stark.
c1990 (WAML Occasional Paper; no.12).
Aloha,
Ross Togashi
University of Hawaii at Manoa
Hamilton Library - Map Collection mmm...quadrangles
On Mon, 18 Mar 1996, Ken Rockwell wrote:
> ----------------------------Original message----------------------------
> Howdy: Here at U of U, I'll soon have two projects going in the Map
> Collection: a major stack shift; and retrospective conversion of topo
> sheets, including reclassing the different series which have
> historically lodged together with the 7.5-minute quads. I'm trying
> to plan for the space needed for these series. Does anyone have
> statistics on the volume of sheets produced in the obsolete series?
> These are: 30-minute maps at scale 1:125,000;
> 60-minute maps at scale 1:250,000;
> 1:31,680-scale maps;
> 6-minute (scale 1:24,000); and
> 15-minute (scale 1:48,000);
> And do I understand correctly that the 60-minute maps were confined
> to the western states, while the 30-minute ones were primarily
> eastern states? Thanks... Ken Rockwell
>
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>Date: Tue, 19 Mar 1996 09:50:54 EST
>Reply-To: Maps and Air Photo Systems Forum <[log in to unmask]>
>Sender: Maps and Air Photo Systems Forum <[log in to unmask]>
>From: "Johnnie D. Sutherland" <[log in to unmask]>
>Subject: Query on obsolete USGS topos
>To: Multiple recipients of list MAPS-L <[log in to unmask]>
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