Past work of the US Geodynamics Committee (USGC) is summarized. The USGC devoted considerable discussion at its November 1976, meeting to preparation of an up-to-date statement of the USGC actions developed by USGC reporters. That discussion ultimately led to a number of statements and recommendations, given here. The bulk of this document is comprised of the reporters' reports on the following topics: fine structure of the crust and upper mantle, evolution of oceanic lithosphere, internal processes and properties, crystal growing, large-volume experimentation, application of isotope geochemistry to geodynamics, geodynamic modeling, drilling for scientific purposes, plate boundaries, plate interiors, data centers and repositories, geodynamic activities in the Caribbean area, seismicity and deep structure of the continental margin, and aeromagnetic survey. Appendixes give project correspondents, participants, etc. 23 figures, 2 tables. (RWR)

The data presented are referenced to a gravity base station in Denio, Nevada at the Post Office, 50 meters south of the Oregon-Nevada State line, 1.6 meters south of the door in the southeast corner of the concrete porch, near the mailbox. Site is monumented with a ''USAF Gravity Station'' disc (A.C.I.C. reference number 2352-1). Base value is 979945.94.

None

Observed apparent resistivity data in ohm-meters, standard error data in ohm-meters, and number of observations are tabulated. (JGB)