4/14/11 - Corps of Engineers
Tree Planting
(Hillsdale State Park, Hillsdale Point)

4/13/11 - Dick's Wednesday Nite Bass Anglers
Bass Tournament
(Hillsdale State Park, Jayhawk Boat Ramp)

4/20/11 - Dick's Wednesday Nite Bass Anglers
Bass Tournament
(Hillsdale State Park, Jayhawk Boat Ramp)

4/3/13 - 8/28/13: Dick's Wednesday Nite Bass Anglers
Bass Tournament
(Hillsdale State Park, Jayhawk Boat Ramp)

4/29/11 - Hillsdale Water Quality Project
Watershed Festival
(Hillsdale State Park, Shelter 1)

4/8/11 - 4/10/11: High Plains PFHA
American Competitive Trail Horse Association
(Hillsdale State Park, Saddle Ridge)

4/16/11 - 4/17/11: Heart of America German Shorthaired Pointer Club
Pointer Field Trial and Hunting Test
(Hillsdale State Park)

5/1/11 - Anglers for Autism
Crappie Tournament
(Hillsdale State Park, Jayhawk Boat Ramp)

5/20/11 - 5/22/11: Eastern Ks. Arabian Association
Competitive Trail Ride
(Hillsdale State Park, Saddle Ridge)

5/15/11 - Fishing for Bridget
Fishing Tournament
(Hillsdale State Park, Jayhawk Boat Ramp)