Skip to main content
Lake Elwell
Nat'l Recreation Area

Lake Elwell

United States

Official sources & verification

Managed by National Recreation Area

Verify before you go

Source of truth

Managing agency

Verify by phone or mail

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this park using the links above before you go — you are responsible for compliance. Last verified by us: May 20, 2026. Spot an error in our data?

About

Imported description
Tiber Dam and its reservoir, Lake Elwell, are on the Marias River in north-central Montana. The dam and reservoir are features of the Lower Marias Unit of the Pick-Sloan Missouri Basin Project. The reservoir has 21,300 water surface acres, 21,244 land acres and 181 miles of shoreline. Major game fish include northern pike, walleye, and rainbow trout. Concrete boat ramps, campgrounds, marina, picnic shelters. Current reservoir levels

Source: recreation.gov

From Wikipedia

Lake Elwell is a reservoir in north central Montana. The reservoir was created by the damming of the Marias River at the Tiber Dam. Lake Elwell was named for Judge Charles B. Elwell (1888–1974), former director of the Montana Reclamation Association.

Source: Wikipedia — text licensed CC BY-SA 4.0. Verify alerts and operational details with the managing agency below.

Reviews

No reviews yet

Be the first to share your experience and help others plan their visit.

Hunting in this park

Hunting is generally prohibited in this National Park Service unit

Verify current park-specific rules with the National Park Service before planning any hunt. See NPS regulations

Spot an error in our data on Lake Elwell?