- Home
- All States
- Iowa
- Union County
Boat Ramps in Union County, Iowa
15 boat ramps
Union County has 15 boat ramps across 7 waterbodies, including Green Valley Lake, Threemile Creek, and Twelvemile Creek. Launches split between lakes and reservoirs.
Loading map…
Ramps in Union County
Afton City Reservoir Ramp
Lake Afton
Afton
OSM
North Boat Ramp
Green Valley Lake
USGS
Summit Lake Country Club Private Ramp
Summit Lake
IA DNR
Thayer Lake Ramp
Thayer Lake
IA DNR
summit lake
Platte River
Creston
USGS
summit lake - city of creston
Platte River
Creston
USGS
three mile wildlife area
Threemile Creek
USGS
three mile wildlife area
Threemile Creek
USGS
three mile wildlife area
Threemile Creek
USGS
twelve mile lake - union
Twelvemile Creek
USGS
twelve mile lake - union
Twelvemile Creek
USGS
twelve mile lake - union
Twelvemile Creek
USGS
3 more ramps
Mapped but not yet named. Check the satellite view to see what’s there.
What waterbodies have boat ramps in Union County?
Data last updated Sep 2026