39.9004180, -91.4318820

Lock and Dam No. 21 Boat Ramp

Fee not yet verified Status not yet verified Public access Updated Oct 15, 2026
View more boat ramps near me

Lock and Dam No. 21 Boat Ramp is a public launch on Mississippi River in Adams County, Illinois . We currently track 8 public launch sites on this waterbody.

The nearest community is Quincy, about 2.7 miles away. The closest larger city is Columbia, approximately 81.3 miles away. The site lies within the Curtis Creek-Mississippi River watershed, as defined by the EPA.

Sourced from U.S. Geological Survey . See the freshness details in the sidebar.

Boat ramps on Mississippi River

We currently track 8 public boat ramps on Mississippi River , including this one. The other public launch sites on this waterbody are listed below, starting with the closest.

Nearby boat ramps in Adams County

We currently track 9 public boat ramps in Adams County. The closest ramps are listed below, along with the waterbody each one provides access to.

Frequently asked questions

We haven't confirmed the current launch fee with the managing agency yet - check the fee badge at the top of this page, which updates as soon as we do.

We don't yet have a confirmed parking count for this location from the managing agency.

This ramp's access type isn't specifically flagged for hand-launched craft, but a trailer ramp can generally be used to launch a kayak or canoe by hand as well.

Lock and Dam No. 21 Boat Ramp provides access to Mississippi River, one of 8 public launch sites we track on it.

This listing is sourced from U.S. Geological Survey records.

This listing was last checked against the source on July 11, 2026. The page content itself was last updated on October 15, 2026.

Quick facts

County
Adams County, Illinois
Nearby places
Quincy (2.7 mi)
Palmyra (8.8 mi)
La Grange (10.4 mi)
Coordinates
39.9004180, -91.4318820 Gaia
Waterbody
Mississippi River
Access type
Public

Current weather

63°F Fog/Mist

Wind NE 3 mph

Full NWS forecast · via National Weather Service
Last updated Oct 15, 2026 at 9:41 AM

Open in Gaia GPS Report incorrect info

Data freshness

How current this listing is, and how it's been maintained.

Last checked against source
July 11, 2026
Page content updated
October 15, 2026
Listed on Boat Ramp US since
October 15, 2026