Tappan Spring is a spring located in Tappan Spring Canyon in Coconino County, Arizona.[1] Basalt rocks of Tappan age are named after flows from cinder cones north of the spring. Tappan-age rocks are from the period 0.2 to 0.7 myr.[2]

References

  1. ↑ U.S. Geological Survey Geographic Names Information System: Tappan Spring
  2. ↑ Richard B. Moore; Edward W. Wolfe; George E. Ulrich (1976). "Volcanic rocks of the eastern and northern parts of the San Francisco volcanic field, Arizona". Journal of Research of the U.S. Geological Survey. 4 (5): 549–560.

35°51′29″N 111°26′36″W / 35.8581809°N 111.4433239°W / 35.8581809; -111.4433239

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