thats about right-and the rig is ca 600 or so feet below sea level which is lower than death valley
every 1000' of elevation is like going 600 miles north so if your tx elevation is 400' above sea level,all other things being equal you should see vegetation equal to a place ... and amount of rain and forest cover matters a lot also-vegetation produces and attracts moisture,so when forests are replaced by fields temps increase and precip decreases
you see this in texas also-whats your elevation in texas? forgot where u said u lived there
since you are a mechanic i usually post this pic to post to you
i dont know if the site for biet shean was posted to the board info or not as dby3? and i or somebody else discussed weeks ago