A special type of structure of ancient platforms is the structural knot, formed by deep-seated tectonic zones, in contrast to other structures of the platform boundaries, structural knots are nonlinear, more or less isometric, and are characterized by the absence of linear orientation of the internal structural elements. The structural and metallogenic characteristics of the Colorado and the Uchur-Maya structural knots, and their similarities and differences, are presented. Structural knots represent marginal zones of ancient platforms that have undergone intense tectonomagmatic activation. Their most important feature is the variety of mineral resources which, in all probability, has been determined by the superimposition of the metallogenic features of the platforms, mobile belts, and intense ore-forming processes associated with tectonomagmatic activation. Most characteristic are ore (molybdenum, polymetallic, etc.), anthracite, and in some cases, oil deposits. The richness in mineral deposits of the w...