| Morrison Formation, San Juan Basin
Oil- and gas-field outlines and age of producing horizon from Fassett (1991).

Fassett, J. E., 1991, Oil and gas resources of the San Juan basin, New Mexico and Colorado, in Gluskoter, H. J., Rice, D. D., and Taylor, R. B., eds., The decade of North American geology, v. P-2, Economic Geology, U.S.: Geological Society of America, p. 357-372.
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