Does this photo show one of the "caravans from all over the nation headed to DC" for the January 6, 2021, protests in support of President Trump? No, that's not true: The photo was taken at an October 24, 2020, Trump rally in the San Francisco area, based on photos Lead Stories found online of the event, including those taken by a KCBS Radio journalist.
The claim appeared in a Facebook post (archived here) published January 3, 2021, which opened:
Caravans from all over the Nation headed to DC for Jan. 6th protest ... 10 million people are expected ... Pray for all of them and pray Divine Protection over Our President Donald J Trump
#maga #KAG #america #patriots
This is what the post looked like on Facebook at the time of writing:
(Source: Facebook screenshot taken on Tue Jan 5 20:13:29 2021 UTC)
Lead Stories did a reverse image search of the photo in the Facebook post.
The image is identical to one that appears on the KCSB Radio website in an article on the October 24, 2020, rally titled, "Thousands show up for Bay Area truck rally in support of President Trump."