I am looking for elevation data organized by latitude and longitude for the Grand Canyon.
I have found USGS elevation data (http://nationalmap.gov/elevation.html), which is in the form of an ESRI Grid, which I don't know how to read. I was looking for a more straightforward data set of Longitude, Latitude, and Elevation.
Alternatively, if someone could describe how to read data from a .dbf file into matlab that would be great. I have tried to download Mapping Toolbox add on for matlab in order to use arcgridread command, but it isn't included in my matlab licence.