-------- 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]