Test 24 Random DEMs

• Maybe my previous examples were lucky.
• Pick 24 random USGS level-1 DEMs, alphabetically the first starting with each letter (then).
• In progress.

Aberdeen-E Baker-E Caliente-E Dalhart-E Eagle_Pass-E Fairmont-E Gadsden-E Hailey-E Idaho_Falls-E Jacksonville-W Kalispell-E La_Crosse-E Macon-E Nashville-E Oneill-E Paducah-E Quebec-E Racine-E Sacramento-E Tallahassee-E Ukiah-E Valdosta-E Waco-E Yakima-E