The explanation for "overthrusts" and "thrusts" is one of many challenges facing creation researchers. We evaluated the stacked thrusts in the Sun River Canyon, along the Rocky Mountain Front, about 100 km west of Great Falls, Montana, USA. We have examined four possibilities for these thrusts, and have eliminated the uniformitarian option of slow uphill movement of older strata over millions of years, because there is little broken rock or deformation at the contact. We also examined a paraconformity of 130 million years but saw no evidence for deformation or erosion, suggesting that this "missing time" is imaginary. At present levels, erosion would denude the continent to sea level in a maximum of 50 million years. This places constraints on the timing of thrusting. Absence of deformation or motion at bedding planes along the northeast shore of Gibson Reservoir also suggests that four proposed minor thrust faults do not exist.