Small stone bridge river crossing. Used 50px/hex for grid but gave a gridless one also. Simple nothing special.
Holy low contrast Batman! umm err.. looks good other than the very low contrast on the gridded version.
nice battle map - a small thing (that I'm working with on my own maps) could be removing the grid on the bridge walls, that would give more depth to the map. Also, try making the grid thinner and black - the black don't need a very thick line to be seen :)