Find your first weak spots.

Refer to FAA-CT-8080-2H, Figure 20. Near the planned route, an obstruction symbol uses the standard two-number format: the upper number is printed above a lower number in parentheses. The launch point is 15 feet MSL and the planned altitude is 300 feet AGL, or about 315 feet MSL. Which charted obstruction value is directly comparable to the aircraft’s 315-foot MSL altitude?