Satellite Relay 1 has performed a thorough mapping of the energy spectrum and spatial distribution of protons in the inner zone. New intensity maps are presented in this paper for six energy ranges between 1.1 and 63 Mev as of January 1, 1963. With these six distributions and previously published intensities in two more ranges accurate energy spectrums can be constructed at arbitrarily selected locations throughout most of the inner zone. The Relay 1 data compare favorably with those of other experiments and unify our knowledge of the proton distributions. In any energy range the maximum intensity is found at the equator, and varies along a line of force near the equator as the third or fourth power of 1/B.There are fewer high‐energy than low‐energy protons, and they are found closer to the earth. Sample intensites arej= 3.7 × 106cm−2sec−1ster−1from 1.1 to 14 Mev atL= 2.2 on the equator andj= 1.6 × 104cm−2sec−1ster−1from 18.2 to 25 Mev atL= 1.6 on the equator. Neutron albedo sources, both cosmic ray and solar proton sources, are weaker than required by as much as four orders of magnitude at 1 Mev. Adiabatic breakdown theories are in disagreement with the spatial dependence of the energy spectrum and cannot be controlling factors. Injection and diffusion of solar wind particles is a possible source, but more theoretical work is needed to clarify the