How to find the highest point of elevation in a given area?

Q. Could I use google maps/earth to find the highest point of elevation in a give area (IE: Zip Code, or State).

Thanks!

A. See the contour (relief) map of that country. Normally the contours ring around the highest point in concentric (non-intersecting) loops.

How often are the Google Maps satellite images updated?

Q. We've done quite a bit of renovations on our little farm and I'm curious when we'll get to see a change in the satellite view on Google Maps or Google Earth.

A. Google purchases the images from many different sources. Most of the images are purchased second hand - basically the images are not taken for the sole purpose of supplying them to Google. Most of the images are taken for completely different reasons and released to the public or sold to Google for extra profit.

Suggestion - your local government agency (county or city) should have a Geographic Information Sytems (GIS) department or division. They could be a great source of aerial photography.

I work for my local GIS division and we have images at 6" resolution taken in spring of 2008, 2007, 2006, 2003, 2001, and 1997.

Check with your local government - they will be the best source for updated imagery.

Where is a link to California River and Lakes map with labels?

Q. HI, I have to find many rivers and likes in California. They must have labels. I tried Google Maps and Earth, and Yahoo maps. The search doesn't find for example feather river it will only find business and roads. I am frustrated and just want to finish my homework. If you could help me out that would be awesome. Thank you in advance.

A. try this and scroll down a ways to see them all labled for you...

http://geology.com/state-map/california.shtml

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