Grassmont Reservoir   Be the first to submit input for Grassmont Reservoir. If you have info on Grassmont Reservoir, San Diego County, California please submit it here to improve this web site.          These outdoors activities are available near Grassmont Reservoir.   Lakes Near Grassmont Reservoir: Sweetwater Reservoir, San Diego County, 6 miles away Upper Otay Lake, San Diego County, 9 miles away Lake Miramar, San Diego County, 11 miles away Loveland Reservoir, San Diego County, 14 miles away El Capitan Lake, San Diego County, 14 miles away   Public Lands Near Grassmont Reservoir: Silver Strand State Beach, California, 14 miles away Old Town San Diego State Park, California, 14 miles away Border Field State Park, California, 17 miles away Cabrillo National Monument, San Diego - CA, 18 miles away   Marinas On or Near Grassmont Reservoir: San Diego House of Motorcycles Inc - Sea-Doo?, San Diego, 7 miles away The Fish Doctor, San Diego, 10 miles away All County Industrial & Marine, National City, 11 miles away Pier 32 Marina, National City, 11 miles away Dewey's Marine-Dive, San Diego, 11 miles away   Camp Grounds Near Grassmont Reservoir: Eastern Trailer Court, El Cajon, 1 miles away Evergreen Mobile Home and RV, El Cajon, 2 miles away San Diego RV Resort, La Mesa, 3 miles away Santee Lakes General Store, Santee, 4 miles away   Hotels Near Grassmont Reservoir: Holiday Inn Express SAN DIEGO-LA MESA (SDSU AREA), La Mesa, 0 miles away Quality Inn & Suites San Diego East County, El Cajon, 0 miles away Relax Inn and Suites, El Cajon, 1 miles away Travelodge El Cajon, El Cajon, 2 miles away Super 8 El Cajon, CA, El Cajon, 2 miles away   Ski Areas Near Grassmont Reservoir: Snow Valley, California, 84 miles away       1041 foot drop, 11 lifts, 30 runs Bear Mountain, California, 84 miles away       1665 foot drop, 12 lifts, 34 runs Snow Summit, California, 85 miles away       1200 foot drop, 14 lifts, 31 runs   Whitewater Near Grassmont Reservoir: Los Penasquitos Creek, San DiegoCounty, 12 miles away       Class III+(V+) - 9 miles long (I-15 to I-5) Whitewater Outfitter - The Adventure Center, San DiegoCounty, 18 miles away       Whitewater outfitter   Golf Courses Near Grassmont Reservoir: Carlton Oaks Country Club, Santee, 3 miles away Mission Trails Golf Course, San Diego, 4 miles away