Lewis Lake Campground is managed by the park. If you are looking for campgrounds managed by Yellowstone National Park Lodges (Fishing Bridge RV Park, Bridge Bay, Canyon, Madison, and Grant Village campgrounds), please visit theYellowstone National Park Lodges Camping website.

RV or Camper Unit Delivery Prohibited. The delivery or pick-up of out-of-park RVs or other camper unit rentals is prohibited. 

Vehicle Length Maximum and Parking. The total vehicle length limit for Lewis Lake's campsites is 25 feet (7.6 m) and is strictly enforced. All wheeled vehicles including trailers and motorcycles must be parked on parking pads or established roadways, so as not to block or restrict traffic in campgrounds. 

Maximum Campsite Occupancy. Maximum occupancy is six people per site. Camp only in designated sites. Camping is limited to 14 days from July 1 through Labor Day and to 30 days the rest of the year parkwide. The 44-day camping limit includes both concession- and park-operated campgrounds. Solicitation to share campsites is prohibited. 

Wildlife/Bear Regulations.

• Keep all food and related items - beverages, cooking utensils, stoves, pet food and, empty or full, food and beverage containers such as coolers, ice chests, and water jugs - locked inside your vehicle or stored in a food storage box, unless in immediate use. Bear resistant food containers must be kept in a vehicle, in a hard-sided camping unit, or in a food storage box.  

• All trash and garbage must be disposed of in the provided bear-proof trash cans. Do not leave food related trash or garbage unattended. 

• Washing dishes or clothing at campground hydrants or spigots is prohibited. Carry all dishwater/wastewater to the restroom toilet for disposal. Potable water shuts off by September 30, and sometimes earlier, depending on weather conditions.

Checkout Time. Check out deadline is 10:00 A.M.

Quiet Hours & Generators. Quiet hours are from 10:00 p.m. to 6:00 a.m. and are strictly enforced. No loud audio devices or other noise disturbances will be allowed during this time. Generators are prohibited. 

Pets. Pets must be kept under physical restraint at all times. Clean up pet waste.

Campfires and Firewood. Wood and charcoal fires are permitted. Campfires are permitted only in established fire grates. Fires must be attended at all times. Only dead, down, and detached wood may be gathered. Wood should not extend outside the fire grate perimeter. Do not break limbs off of standing trees, living or dead. Drown campfires thoroughly with water to make sure they are completely out. Do not put dirt, rocks or garbage into the fire grates. 

NOTE: Wood and charcoal fires may be subject to special restrictions due to fire danger. Restrictions will be listed on campground information boards and on the park's Current Conditions page. Propane grills and stoves are not usually affected by fire restrictions.  

Fishing. To fish within the park, people 16 years of age and older are required to purchase and carry on their person a Yellowstone National Park Fishing Permit (you may purchase in advance). To learn more about fishing regulations, visit the park's Catch a Fish web page.