Telluride Mushroom Festival: For more than four decades now, mycologists, artists and enthusiasts have communed for forays into the woods to identify mushrooms, to hear from world-renowned mycologists and to enjoy dozens of mushroom vendors, a film festival and the parade at 4 p.m. Saturday. It runs through Sunday around Telluride, $200-$1,500; tellurideinstitute.org.

Colorado Turkish Festival: Whirling dervish, live Turkish music, Turkish cuisine, like baklava and Turkish coffee, interactive art workshops and Turkish-style coffee cup fortune telling. The event honors all things from the land of Türkiye. It’s noon-5 p.m. Sunday, City Park Shelter No. 7, 411 S. Bryan Ave., Fort Collins, $10, free 17 and younger; musicfestivalwizard.com.

Rocky Mountain Book & Paper Fair: Bibliophiles and lovers of words will go wild for the largest collection of specialty booksellers and dealers in the Rocky Mountains. It’s 1-7 p.m. Friday and 10 a.m.-4 p.m. Saturday, The Ranch Events Complex/Pedersen Toyota Center, 5280 Arena Circle, Loveland, $7 good for both days, free for kids, students, librarians, professors and faculty; rmaba.org.

Boulder County Westernaires Show: The Westernaires, a mounted precision drill organization featuring Denverites ages 9 to 19, will bring out its full performance division for an afternoon of drill maneuvers, horse acrobatics, trick riding and more. It’s 2-4 p.m. Sunday, Boulder County Fairgrounds, 9595 Nelson Road, Longmont, $15, $5 ages 5-12, free 4 and younger; westernaires.org.

Broomfield Jewish Festival: Celebrate with music by the Rogers Park Band, New York-style deli and kosher food such as potato knishes, truffle pastrami sandwiches and rugelach, a pop-up Judaica shop, matzah baking, activities for kids and more. It’s 4-7:30 p.m. Sunday, Palisade Park Amphitheater, 680 W. 168th Place, Broomfield, free; chabadbroomfield.com/festival.