My Google Map Blog

Last week we showed you some imagery from the landslide in Oso, Washington and this week we’re back with a few overlays from James Baker that help explain things a bit more.

James has created two overlays; one that shows the outline of the extent of the previous landslide, and one that shows the source of the recent slide and run-out areas.

• KMZ of pre-slide area
• KMZ of post-slide area

In addition, he’s created a simple KMZ file that shows the Devils Mountain fault running directly through the affected area. You can download that KMZ here, and see a screenshot of it below.

Great work, James!

The post Overlays of affected areas from Oso landslide appeared first on Google Earth Blog.

A few months ago we took a look at some of Eric Stitt’s work on genealogy on his blog, and he continues to produce very useful tips. His latest post goes into detail about Overlays, which can be useful to Google Earth users of all levels.

In researching his past, overlays can be a very valuable tool as he explains here:

I have used overlay for flying routes, shipping lanes, and mostly used for plat maps. I love plat maps, it’s like my little window to the past. You can take a plat map, stretch it over the township your ancestors lived in and then use that to figure out where things from the past laid in today’s land. For instance, how many times have you see a old farm field turn into a subdivision? What I have done is place that plat map over the township and then used placemarkers to mark the Church, School, and Cemetery and then my polygons to mark the farm.

To learn more, check out Eric’s full post or read more of our posts related to overlays.

The post Using the Google Earth Overlay tool appeared first on Google Earth Blog.