September 17: Lakes Basin Cleanup

Series Sponsors: Inyo National Forest, Town of Mammmoth Lakes, Measure R 

Event Sponsor: Mammoth Coffee Roasting Co.

Project Description:

After two years of being postponed the annual LAKES BASIN CLEANUP is back!

Please join us for a fun day of stewardship and connection held in conjunction with the Great Sierra River Cleanup. Meet your local Trail Hosts at the Horseshoe Lake parking lot at 9 a.m. Bring your own lunch, seating (if desired) and water bottle. The day of work will be followed by dessert and fun giveaways for everyone! Please dress for trail work. Closed-toe shoes and long pants required; walk, bike ride or carpool if you can.

Email, or call (530) 251-6122 to speak with me, Joel Rathje, the Mammoth Lakes Trail System Trails Manger, if you have questions. 

Trail Days are made possible by the Town of Mammoth LakesInyo National ForestMammoth Lakes Recreation, and Mammoth’s own Measure R! And special thanks to KMMT Radio for airtime to spread the word!

  • When: Saturday, September 17, 9 a.m. - 1 p.m.
  • Where: Meet at the Horseshoe Lake parking lot for a safety talk and work assignments.
  • What: Work efforts will include trash cleanup and fishing line recycling!
  • Who: Volunteers of all ages and abilities are welcome! Please dress for trail work: sturdy, close-toed shoes, hat, and long pants. Tools will be provided.

View or download the Lakes Basin Cleanup flyer!

View the Trail Days 2022 Photo Gallery!


  • Total Volunteers: 42
  • Trash picked up on land:  75 lbs
  • Trash removed from Lake Mary:  300 lbs
    (HUGE THANKS to Clean Up The Lake, and MLR Program Director KIM ANACLERIO for coordinating the unprecidented underwater effort!)


2      Clothing Hangers 
1      Ear Plug
1      Running Shorts
5      Hair Ties
24    Misc. Paper 1 Bullet Casing 4 Socks
1      Glove
2      Kleenex
4      Larger Cardboard
2      Metal Wire
1      Lipstick
3      Clothing Pieces
1      Computer Junk
3      Receipts
6      Masks
184  Napkins
1      Dog Bag
14    Raw Dog Feces
1      Sandal
1      Deodorant
1      Fake Leaf
1      Pair of Shoes
1      Ski Pole Basket
196  Cigarette butts
277  Food Wrappers  
12    Take Out Containers (Plastic)
25    Take Out Containers (Foam) 
136  Bottle Caps (Plastic) 
91    Bottle Caps (Metal) 
40    Lids (Plastic) 
44    Straws/Stirrers
20    Forks, Knives, Spoons 
45    Beverage Bottles (Plastic) 
43    Beverage Bottles (Glass) 
53    Beverage Cans 
11    Grocery Bags (Plastic) 
29    Other Plastic Bags 
19    Paper Bags 
13    Cups & Plates (Paper) 
15    Cups & Plates (Plastic) 
19    Cups & Plates (Foam) 
7      Fishing Buoys, Pots, Traps 
5      Fishing Net & Pieces 
7      Rope (1yd = 1 piece) 
301  Fishing Line (1yd = 1 piece) 
56    Plastic / Foam Packaging 
10    Plastic Bottles (oil, bleach etc) 
17    Strapping Bands 
5      Diapers 
1      Syringes 
1      Feminie Pads 
6      Balloons  
3      Cigar Tips 
1      Cigarette Lighters 
12    Construction Materials 
103  Tiny Trash Foam (less than 2.5 cm) 
421  Tiny Trash Glass (less than 2.5 cm) 
278  Tiny Trash Plastic (less than 2.5 cm)