Reply to "Elevations from various sources"

justinkuoCertifier

Like most, I use Google Earth to determine the start and finish elevations. It's fast and easy to use.

For greater detail, you could use one of the numerous tools created by the USGS. One of the tools is National Map Viewer.

http://viewer.nationalmap.gov/viewer/

The viewer seems to be accurate to the 100ths of a foot/meter. The example below shows an elevation of 104.71 feet / 31.92 meters for the USA Track & Field New England Association office. If the location marker was not in the desired location, you can use the spot elevation button and click elewhere on the map. Spot elevations appear to be accurate to 1 feet or 1 meter.

Click on the image to enlarge.

If the calculated drop was on the "cusp" of being legal, I might include the elevation source on the map.

Thank you. -- Justin

12/20/1111:15 AM

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