[BR-Crater] ready to update SEIS entry?

[Ian Kluft]

I'd like to send an update to the Impact Field Studies Group (IFSG) of
the entry in the Suspected Earth Impact Sites (SEIS) list with the
updated diameter of the suspected Black Rock impact structure.

So far the feedback I've been getting is the exclamation "that's huge!"  
It implies acceptance of the posted result.  But I haven't heard whom 
among those respondents has actually gone through the map and verified and 
agree with the observation that the terrain features follow the circular 
hint that I overlaid on the map.  Since it's difficult to see the terrain 
features on the map scale that it takes to see the whole diameter of the 
structure, I'd like to hear from a few people who have verified it before 
I send an update to IFSG.

Take a look at the maps at...
   http://ian.kluft.com/blackrock/impact-crater/br-relief-map-200901.html
(The lower map is a browsable inset of Google Maps.  Clicking on the upper
map or the "view larger map" link below the lower map will take you to
Google Maps in terrain mode.)

Or is it just so obvious now with the overlay hint that I didn't need
to ask?