December 7, 2018December 8, 2018 by nancyyu Mt Diablo: Late Autumn Tarantula Sighting Contra Costa County, Mount Diablo mt diablo state park, north gate rd, tarantulas 2 Comments Friday, December 7, 2018 Went up Mt Diablo via North Gate Rd today and saw this little guy in the middle of the road across from the second gated white Diablo Ranch entrance. Share this:FacebookEmailTumblrPrintTwitterRedditLinkedInPinterestPocketLike this:Like Loading...