Standley Lake Regional Park and Wildlife Refuge

Visit just for the day or spend an entire week exploring Standley Lake Regional Park and Wildlife Refuge! Located at 100th Avenue and Simms Street in unincorporated Jefferson County, there's plenty of outdoor fun to experience at the 3,000 acre park. The most popular activities include paddle boarding, kayaking, rowing, fishing, picnics, walking, bicycling, camping, wildlife viewing and attending nature programs.

Standley Lake Master Plan

Thank you to everyone who participated in our first master plan survey. We had nearly 1000 respondents! Having your voice heard in this way allows us to build a master plan that represents what our community wants. Please check back here, and on our social media, for our next survey that will be opening soon.

Park Access

Standley Lake Regional Park is open year-round. The hours during the summer (May 1 to September 30) are sunrise to sunset for walk-in access and 6:30 am to 8 pm for those who drive in. The hours during the winter (October 1 to April 30) are sunrise to sunset for those who walk in and 7:30 am to one hour before sunset for drive-in access.

Lake Access

With 1,063 acres of surface area, Standley Lake is Westminster's largest body of water. It is also the Denver metropolitan area's third-largest reservoir. The water in Standley Lake is jointly owned by the cities of Westminster, Thornton, Northglenn, and the Farmers Reservoir and Irrigation Company (FRICO) and is the primary drinking water supply for all three cities serving over 300,000 people. For this reason, no swimming or wading is allowed in the water. Lake access is available May 1 to September 30 and requires the purchase of a daily paddle pass or annual paddle permit. All allowable recreation uses are outlined in the current intergovernmental agreement between the cities of Westminster, Thornton, and Northglenn and available on our park rules and regulations webpage.

Nature Center

Standley Lake Regional Park has a Nature Center located on the north side of the park. Visitors can view animal displays, see Standley Lake historical photos, borrow FREE binoculars and exploration packs, purchase passes and permits, obtain park information and visit the bullsnake, Toro, and the ornate box turtle, Ned! The Nature Center is open during the summer (May 1 - Sep 30) 8 am - 5 pm and the winter (Oct 1 - April 30) 8 am - 5 pm.

  1. Standley Lake Nature Center


    Physical Address
    11610 W 100th Ave.
    Westminster, CO 80021


    Nature Center Summer Hours (May 1 to Sept. 30): 8 am to 5 pm daily

    Nature Center Winter Hours (Oct. 1 to Apr. 30): 8 a.m. to 4 p.m. daily, except Wednesday (variable hours Wednesday).


View All FAQs