I am just reporting what PlugShare shows in the elevation graph. Using PlugShare Desk Top
https://www.plugshare.com/ (not the phone app) I clicked on "Plan new trip" in the main menu on the left about half way down. Then entered the starting point as "Orlando" And the destination as "Lakeland" This will give a rout between the two. On the right hand side there is an elevation button. I clicked on that to show the elevation graph. The lowest point on the graph is 85 ft the highest point on the graph is 229 ft. It shows the starting point in Orlando as being ~100 ft. It show the highest point as being 229 about 2 miles from Lakeland and then dropping off to 190 feet.