Click on highlighted event for more information.
Events are subject to change due to weather or other circumstances, please contact the park to verify events.
| 2009 | ||
| January 10 | Trout Derby | Glen Helen |
| February 14 - 16 | Calico Civil War | Calico Ghost Town |
| February 21 | Trout Derby | Prado |
| March 14 | Trout Derby | Mojave Narrows |
| April 4 | Trout Derby | Cucamonga Guasti |
| April 11 & 12 | Easter Weekend | Calico Ghost Town |
| April 3 - 5 | Civil War Re-enactment | Prado |
| April 19 | Juvenile Diabetes Car Show | Cucamonga Guasti |
| April 25 | Trout Derby | Lake Gregory |
| April - November | Concert Season at Glen Helen Pavilion | Glen Helen |
| May - September | Catfish Season | Cucamonga-Guasti, Glen Helen, Prado, Mojave Narrows, Yucaipa |
| May 9 - 10 | "Bluegrass in the Spring" Festival | Calico Ghost Town |
| May - Sept. (Memorial Day weekend thru Labor Day weekend) | Swim and water slide season | Cucamonga-Guasti, Yucaipa, Glen Helen, Lake Gregory |
| May 23 | Trout Derby | Lake Gregory |
| May 30 | Lake Gregory Open Horseshoe Tournament | Lake Gregory |
| June 6 | Gordon McHenry Kids Derby | Lake Gregory |
| June 19 - 21 | Huck Finn Jubilee | Mojave Narrows |
| July 4 | Jamboree Days | Lake Gregory |
| July 18 | Don Gregson Memorial Horseshoe Tournament | Lake Gregory |
| August 15 & 16 | Dragon Boat Races | Lake Gregory |
| September 6 | Sand Sculpture Competition | Lake Gregory |
| September 7 | Trout Derby | Lake Gregory |
| Oct. 3 | Juvenile Diabetes Walk | Cucamonga Guasti |
| October 9 - 11 | Calico Days | Calico Ghost Town |
| Oct. 23 - 25 & 30 - Nov 1 | Calico Ghost Haunt | Calico Ghost Town |
| Nov - April | Trout season | Cucamonga-Guasti, Glen Helen, Prado, Yucaipa |
| Nov. 27 - 29 | Holiday Craft Festival | Lake Gregory |
| Nov. 27 - 29 | Calico Heritage Fest | Calico Ghost Town |
| Nov. 28 | Tree Lighting Ceremony | Lake Gregory |
| December 5 | Christmas in Calico | Calico Ghost Town |
| Jan 1 - 3, 2010 | New Years in Calico | Calico Ghost Town |