The 18th ANNUAL DRAGONFLY FESTIVAL at Bitter Lake National Wildlife Refuge is on Saturday, September 7th this year! Bitter Lake National Wildlife Refuge and Friends of Bitter Lake National Wildlife Refuge host this unique, fun for all – Annual Dragonfly Festival! RESERVATION PHONE LINES FOR THE VARIOUS GUIDED TOURS WILL BE OPENING SOON, AT NUMBER: 575-625-4011. Check back for this year’s Schedule of the various Tours! All of the day’s events are free of charge.