Lineaments are a well-recognized landform. They have been connected with basement shear zones that affect topography. Using satellite mapping, I examine circular lineaments, which show defined centers and concentric expressions at the surface. They are expressed geomorphically in both raised and lowered zones of elevation. Symmetry, repetition, and regularity can be used to discriminate lineaments from random features. Circular lineaments at Unaweep Canyon and the TONCK Structure are mirrored by topographic and gravity anomalies that display the physics of shock and release waves produced by impacts. It is possible that these features were produced by impacts, and that this hypothesis may allow a better interpretation of landforms.