-------- Original Message --------
Subject:        USGS 1:25000 quads
Date:   Mon, 10 Nov 2008 18:27:45 -0500
From:   Michael Fry <[log in to unmask]>
Organization:   University of Maryland Libraries
To:     Maps and Air Photo Systems Forum <[log in to unmask]>



I recently discovered a handful of USGS 1:25,000-scale, 7.5-minute topos interfiled w/ our
1:24,000s. I knew we had USGS 1:25,000s, but those are a different animal: they're 7.5 x 15-minute
and metric. What I have here are 7.5 x 7.5 and not metric. Examples: Easthampton, MA [1964/1979] and
East Lee, MA [1973].

Anybody know the history here? Are there other (many??) 1:25,000s in the 7.5-minute series that I've
[cough] just never noticed before, or did I randomly run across the only three 1:25,000 quads in
existence? ;)

FWIW, I quickly checked USGS's "Maps for America", and every reference to a 1:25,000-scale I've
found is directly linked to the metric editions from the 1980s; no mention of non-metric,
1:25,000-scale topos. ???

Thanks for any light you can shed on my mystery of the week.
mf
--
Michael Fry
Map Librarian
Government Information, Maps and GIS Services
4118 McKeldin Library
University of Maryland
College Park, MD 20742
301.314.1357 | [log in to unmask]