Anyone know how often Google maps are refreshed?

[mark s]

I was playing on Google Maps looking at possible backcountry CO trips for the summer. I was wondering if they refresh the images with any good frequency. Specifically if frequent enough whether one could use Google Maps to gage snow conditions. With the resolution it would certainly be valuable if the refresh was weekly (probably wishful thinking) but might be useful if only monthly. Anyone know? Still amazes me what one can see with these sat images. At our farm, one can clearly see barns in fields with good resolution (but not my cabin in the woods).

[ozarkrambler]

I just looked at my place on Google maps, and it hasn't been updated since late last summer.

I could count every bale of hay, every cow, and see the tractor, mower, even a 25 gal sprayer in the back of a four wheeler.

Kind of scary.

[firecog]

My area hasn't been updated for 5 years

[Jon S]

My house has been at least 2 years since an update.

[rambler_wannabe]

It really depends on the "popularity" of the region and how fast it changes. For my place, the different zoom levels were taken at different times (like different YEARS) so you can see the progression as I have built up the farm.

My old house in the city, you can see the patched shingles that didn't quite match! Even there, some levels are 5 years old.

[mark s]

Well I checked out my house. I could see a chair on my garage roof, the ladder to the roof and I think a blur that is me climbing onto the roof and my archery target in the back yard. From the placement of the archery target I know that the image was September 2011. Freaky stuff!

[Kevin Hans]

Mine appears to be around 10 years old.