Dillon Reservoir is conveniently located off I-70 just west of the town of Silverthorne. The reservoir is at an elevation of 9017 feet above sea level, and has a surface area of 3233 acres when full. Because of its use as a reservoir for Denver the water levels can fluctuate. It is common for the reservoir to be drained in mid May to make room for runoff and snow melt from the adjacent mountains.
The reservoir is owned by the Denver Water Board and is used to supply water to the city. Because of its use as a source of water for Denverno water contact sports are allowed. This means there is no water skiing, swimming, or scuba diving allowed.
The reservoir has several boat ramps with my favorite being the Frisco ramp which is located off Highway 9 on Marina. This boat ramp has a nice tiki bar that serves burgers, beer, and other favorites.
If the members of your party get tired of boating you can drop them off at the dock and they can take the car over to the factory shops at Silverthorne while you try your hand at catching rainbow trout, brown trout, or Kokanee Salmon in the reservoir. Artic Char have been stocked but haven’t developed into a major source of fish. The brown trout in the reservoir are often times bigger than the rainbow, and an occasional cutthroat may be caught that has made its way into the lake from the local feeder streams.
The reservoir is very scenic with great views and interesting coves and islands to explore. The Frisco Marina has facilities available to repair Evenrude / Johnson motors and they offer services for winterizing power and sail boats. There is another outboard motor servicing facility in Silverthorne near the Target store that services Mercury engines.
Dillon reservoir is a favorite spot for sail boats with good afternoon winds. There are several annual sailboat racing events hosted at the lake.
Getting there: From Denver take Interstate 70 through Eisenhower Tunnel to Dillon. To get to the Dillon Marina take the Silverthorne exit 205 to Hwy 6 and take Hwy 6 to Dillon. Follow the signs to the marina.
To get to the Frisco Marina take the Frisco exit 203 off I-70 then take Hwy 9 south. Take Hwy 9 to Main Street and turn left to the marina.
The reservoir is open to all types of boats and there is an inspection required for aquatic zebra muscles.
In May when the ice is off the lake the Marina hours are 8:30 am to 5:30 pm. During the peak season from June 1st on the Marina is open 7 days a week from 9 am to 7 pm.