Samples of paleomagnetic study were collected from the area of Red Sandstone Creek (Lat. 39.73 ¿N, Long. 253.6) near Vail, Colorado, in hopes of locating the stratigraphic base of the Kiaman Reversed Interval to within a few meters. Previous workers had sampled the same upper Pennsylvanian and Permian Minturn and Maroon Formations in this section and had placed the base of the Kiaman at 91m to 213 m above the Minturn Formation. The interval from 276 m below to 420 m above the Maroon/Minturn contact was sampled in the present study at one meter intervals where possible. Of the 171 samples collected, only 2 had near normal components. The 2 were not consecutive and the normal components were removed easily by thermal cleaning or were shown to be a viscous overprint of the present field. The previous workers were apparently misled by a lack of magnetic cleaning of their samples. The conclusion of this study is that the base of the Kiaman must be stratigraphically lower in this section. The pole position from the sampled section is Lat. 42.6 ¿N, Long. 115.4 ¿E, A95=2.75 for N=145 samples.