I can find lots of resources stating the average surface temperature. However, I have found conflicting reports concerning the distribution of temperatures on the surface. For example, the Venus wikipedia page suggests that the coldest spot on the surface is about 650K at the top of Maxwell Montes. However, other resources reporting on the Venus Express probe suggest that the "Venus Express probe revealed that the polar regions have a surface temperature of... 116K", which is significantly different. However, I suspect that this may be a reporting error, and may actually reflect an atmospheric temperature at an undisclosed altitude. Specifically, the paper describing the probe's final data does not seem to mention the word "surface" whatsoever, but is full enough of science-speak that is foreign to me that such a statistic may actually be hidden in there.
In any case, what are some good resources on the actual distribution of surface temperatures on Venus? At the very least, estimated temperatures in a few key areas (equator, poles, mountains, valleys, etc etc) would be desirable.