Tomahawk Tower Rock Climbing

Drive the rugged Dry Creek Road to the Brins Mesa Trailhead on the right (east) side of the road. Hike east on Brins Mesa Trail for approx. 3/4 mile, until a major side drainage cuts off to the left (east). This drainage is between two prominent areas of slickrock the trail crosses, and just before the second one is reached. There is a very large juniper on the left side of the mouth of the drainage.
Hike up the drainage for almost 1 mile, until the spire is obvious on the ridgeline above and to the left (north) of the drainage and there is an expanse of slickrock just above and left (north) of the drainage. Exit the drainage onto the slickrock, and follow your nose up the final steep slope, weaving around to avoid the most vegetation. The ridgeline below the satellite formations to Tomahawk, and around the left (west) side of these formations proved pretty brush-free.
Total hike time is an hour or slightly more.

Bloom/Wolfe Sedona Rocks (guidebook) has a very detailed topo for this approach, which proved useful and pretty accurate. It's worth seeking out.