Iowa Parallel Relief

HRTM meter resolution of a ~7 km long lineal just south of Readlyn, Iowa (top of map) which runs parallel to a 16 km long lineal located 6 km to the south. The town of Denver, IA is on left of map. The elevation key is a false color map that recycles every 10 meters. The protocol is employed to tickle out light elevation differences which might reveal geological formations or landforms otherwise invisible in other media. There are obvious parabolic dunes in the lower left of the image, but the main strikes are of interest. The strike runs across the NNW-SSE trend of the regional terrain fabric. The ECW imagery was rendered in Global Mapper from recently-released USGS TNM 1m dataset *IA_EasternIA_2019_B19*.