Midsummer's day: Leaving Rivendell

Ascent into the Misty Mountains
(Scrambles Amongst the Alps
in the years 1860-69
by Edward Whymper)

It is a clear day on this day, in 2941 T.A., as the Company with Gandalf and Bilbo finally leave Rivendell (in whatever timeline) and head into the Misty Mountains.

Karen Fonstad calculates an average distance of 4 miles per day for this leg of the journey, but does not take the attested lunar phases into account. We will see later this month that they suggest a faster progress.