I have a good sized jpg. I don't think it is really that big. It more of the streching over a wide area.
The line that in an issue: bitmap wolf-ariel.jpg "0 0 512000 41256616 1279 947 517116 4130400" Error: This is pdfeTeX, Version 3.14159-1.10b-2.1 (Web2C 7.4.5) entering extended mode (./data.tex{/usr/share/texmf/pdftex/config/pdftex.cfg} (./th_enc.tex) (./th_texts.tex) (./th_resources.tex) (./th_fontdef.tex{/usr/share/texmf/dvips/ config/pdftex.map}) (./th_formdef.tex) (./th_pagedef.tex ! Dimension too large. <to be read again> \advance \bitmapcorr ...rr by\overlap \ycorr =#6bp\advance \ycorr by\extraS \advance ... l.46 ...13}{1180.657953}{10525550.209759}{\THBMPa} % ! Dimension too large. <argument> \ycorr \dimtobp #1->\tmpdimen =#1 \tmpdimen =0.996264\tmpdimen \edef \tmpdef {\the \... \bitmapcorr ... \wdth {\tmpdef }\dimtobp {\ycorr } \edef \hght {\tmpdef }\pdf... l.46 ...13}{1180.657953}{10525550.209759}{\THBMPa} % </home/blitz/documents/clubs/caving/survey/cave/us/va/giles/wolf/wolf-ariel.jp g>) (./th_pages.tex) [1] )