| Skyline Trail | 7.3 mi | 1,420 ft | 1,426 ft | 317894 |
| BCT 7 First Drumlin Route (LincolnWeston/Wayland) | 6.8 mi | 137 ft | 113 ft | 11293008 |
| Mountain Bike Loop | 6.3 mi | 667 ft | 572 ft | 317896 |
| Reservoir Trail | 5.9 mi | 583 ft | 556 ft | 317895 |
| ACROSS Lexington Route A | 5.3 mi | 61 ft | 53 ft | 5691610 |
| Battle Road Trail | 4.7 mi | 225 ft | 116 ft | 4009025 |
| Cross Fells Trail | 4.7 mi | 712 ft | 728 ft | 381651 |
| Burlington Landlocked Forest Yellow Loop | 4.4 mi | 364 ft | 347 ft | 4090020 |
| Landlocked Forest Yellow Trail | 4.4 mi | 364 ft | 347 ft | 5322441 |
| Rock Circuit Trail | 4.1 mi | 818 ft | 847 ft | 388995 |
| Reformatory Branch Trail | 3.9 mi | 0 ft | 0 ft | 5637935 |
| Cochituate Rail Trail | 3.6 mi | 0 ft | 0 ft | 20596183 |
| Farrar Pond Loop | 3.5 mi | 230 ft | 209 ft | 11280872 |
| Great Meadows Greenaugh Loop | 3.4 mi | 0 ft | 0 ft | 11812989 |
| BoundaryTrail | 3.3 mi | 386 ft | 423 ft | 10314975 |
| Narrow Gauge Rail Trail | 3.1 mi | 44 ft | 0 ft | 18201745 |
| Somerville Community Path | 3.0 mi | 61 ft | 82 ft | 1714971 |
| ACROSS Lexington Route G | 2.8 mi | 76 ft | 70 ft | 11000064 |
| Tom Paul Trail | 2.7 mi | 113 ft | 311 ft | 10330466 |
| ACROSS Lexington Route M | 2.7 mi | 22 ft | 61 ft | 11000425 |
| Cat Rock Loop | 2.6 mi | 232 ft | 236 ft | 11795272 |
| ALC ACROSS Lexington Route C | 2.5 mi | 43 ft | 40 ft | 5506419 |
| Ice Line Trail | 2.5 mi | 17 ft | 0 ft | 19723570 |
| Riverwalk Ramble | 2.2 mi | 51 ft | 25 ft | 10126264 |
| Alewife Linear Park | 2.1 mi | 0 ft | 0 ft | 147544 |
| Long Lake Loop | 1.9 mi | 193 ft | 166 ft | 10318108 |
| Nashua Acton & Boston Railroad Trail | 1.7 mi | 0 ft | 0 ft | 18240379 |
| Emerson-Thoreau Amble | 1.7 mi | 69 ft | 26 ft | 3987259 |
| Minuteman-Battle Road Connector | 1.7 mi | 44 ft | 68 ft | 5694627 |
| Jennie Dugan Brook and Hosmer Trail Circuit | 1.6 mi | 107 ft | 93 ft | 6622384 |
| Hazel Brook to Ponyhenge | 1.4 mi | 86 ft | 58 ft | 11351528 |
| Balsam Trail | 1.4 mi | 60 ft | 49 ft | 16675684 |
| Alan Emmet Trail | 1.3 mi | 52 ft | 58 ft | 6744186 |
| Quarry Trail | 1.3 mi | 158 ft | 102 ft | 21619239 |
| River Trail | 1.3 mi | 0 ft | 0 ft | 5568006 |
| Barretts Mill Loop | 1.2 mi | 0 ft | 0 ft | 11249665 |
| Target Trail | 1.1 mi | 19 ft | 19 ft | 7591386 |
| Danforth Loop | 1.1 mi | 190 ft | 206 ft | 17966849 |
| Interior Loop Trail | 1.0 mi | 151 ft | 155 ft | 10314974 |
| Russell Trail | 0.9 mi | 20 ft | 20 ft | 10381072 |
| Horn Pond Bikeway | 0.9 mi | 0 ft | 0 ft | 11333414 |
| Alewife Linear Park | 0.9 mi | 0 ft | 0 ft | 3962603 |
| Egg Rock Trail | 0.9 mi | 45 ft | 0 ft | 11249732 |
| Langone-Pine Grove Farm Trail | 0.8 mi | 0 ft | 0 ft | 4160750 |
| Westvale-Harrington Park Yellow Trail | 0.8 mi | 34 ft | 62 ft | 6601537 |
| 100 Acre Pasture | 0.8 mi | 186 ft | 47 ft | 21619246 |
| Nashoba Brook Woodland Loop | 0.8 mi | 25 ft | 24 ft | 11248199 |
| Buckboard Trail | 0.7 mi | 44 ft | 0 ft | 6745718 |
| Stone Arch Bridge | 0.7 mi | 31 ft | 24 ft | 10330467 |
| Lower Vine Brook Loop | 0.7 mi | 68 ft | 62 ft | 4164706 |
| Peace Trail | 0.7 mi | 20 ft | 0 ft | 17576859 |
| West Concord Park Suggested Walk | 0.7 mi | 56 ft | 55 ft | 6616466 |
| North Trail | 0.7 mi | 21 ft | 18 ft | 18910825 |
| Main Trail (blue) | 0.7 mi | 0 ft | 0 ft | 9897751 |
| Rock Circuit Connector | 0.6 mi | 116 ft | 33 ft | 11980542 |
| Bancroft Castle | 0.6 mi | 171 ft | 22 ft | 8258277 |
| Woodhaven Trails | 0.6 mi | 18 ft | 0 ft | 10381049 |
| White Rock Path | 0.5 mi | 70 ft | 29 ft | 1228272 |
| Mid Trail | 0.5 mi | 0 ft | 63 ft | 21619241 |
| Jack & Betty Valentine Trail | 0.4 mi | 0 ft | 0 ft | 20172230 |
| Fells Path | 0.4 mi | 26 ft | 134 ft | 388994 |
| Blanchard Hill Trail | 0.4 mi | 125 ft | 120 ft | 21619245 |
| Pine Grove Path | 0.4 mi | 28 ft | 31 ft | 1227918 |
| Melrose Path | 0.4 mi | 0 ft | 175 ft | 1227919 |
| Virginia Wood Trail | 0.4 mi | 72 ft | 30 ft | 1099539 |
| Lowell Connector Trail | 0.4 mi | 0 ft | 0 ft | 18226307 |
| Meadow Trail | 0.4 mi | 55 ft | 0 ft | 21619242 |
| Red Trail to Salmon Brook | 0.4 mi | 0 ft | 0 ft | 21619244 |
| Likely Trail | 0.3 mi | 0 ft | 17 ft | 10381118 |
| blue trail | 0.3 mi | 0 ft | 31 ft | 19825148 |
| Folly Trail | 0.3 mi | 21 ft | 25 ft | 6744187 |
| Hermit Thrush Trail | 0.3 mi | 39 ft | 30 ft | 6744188 |
| McAfee Trail | 0.2 mi | 0 ft | 0 ft | 10381167 |
| orange trail | 0.2 mi | 24 ft | 29 ft | 19825157 |
| Panther Cave Trail | 0.2 mi | 25 ft | 0 ft | 386965 |
| Kulmala Trail | 0.2 mi | 20 ft | 39 ft | 10381071 |
| Secondary Trail (Orange) | 0.1 mi | 0 ft | 0 ft | 9897749 |
| Bear Hill Trail | 0.1 mi | 0 ft | 54 ft | 357462 |
| Yellow Trail | 0.0 mi | 0 ft | 0 ft | 15663592 |
| Indian Hill | -0.0 mi | 296 ft | 257 ft | 8258791 |
| Rocky Hill Scenic Walk | -0.0 mi | 241 ft | 266 ft | 8258792 |
| West Groton Tour | -0.0 mi | 455 ft | 641 ft | 8438131 |
| South Groton Tour | -0.0 mi | 575 ft | 735 ft | 8438258 |
| Groton Tour | -0.0 mi | 866 ft | 663 ft | 8440075 |
| Assabet River Rail Trail | -0.0 mi | 277 ft | 87 ft | 8443314 |
| Bruce Freeman Rail Trail | -0.0 mi | 236 ft | 225 ft | 8609467 |
| Drumlin Hop | -0.0 mi | 651 ft | 487 ft | 8790250 |
| Sabine Woods Loop | -0.0 mi | 123 ft | 126 ft | 8258537 |
| Redevelopment Rove | -0.0 mi | 16 ft | 0 ft | 10117606 |
| Heritage Hike | -0.0 mi | 18 ft | 17 ft | 10117607 |
| Waterpower Walk | -0.0 mi | 23 ft | 22 ft | 10126263 |
| Harry's Dark Forest River Trail | -0.0 mi | 0 ft | 0 ft | 8258491 |
| Shepley Steeplechase Trail | -0.0 mi | 276 ft | 290 ft | 8258490 |
| Skinner Pond & Forest Trail | -0.0 mi | 196 ft | 383 ft | 8258458 |
| Two Brothers Trail | -0.0 mi | 167 ft | 191 ft | 10315070 |
| Skip Along Skitapet | -0.0 mi | 128 ft | 221 ft | 8258457 |
| Blue Dot Trail | -0.0 mi | 69 ft | 18 ft | 10318441 |
| Mount Misery Round Trip | -0.0 mi | 171 ft | 258 ft | 10327896 |
| Cranberry Bog - Pennensula Trail | -0.0 mi | 0 ft | 0 ft | 10329297 |
| Royal Throne Trail | -0.0 mi | 124 ft | 154 ft | 8258375 |
| Hayes Woods Lollipop | -0.0 mi | 98 ft | 161 ft | 8258374 |
| Marion Stoddart Nashua River Loop | -0.0 mi | 17 ft | 29 ft | 8258373 |
| Town Forest Loop Trail | -0.0 mi | 346 ft | 339 ft | 7699376 |
| Groton Town Forest Race 3.4 Mile Loop | -0.0 mi | 273 ft | 278 ft | 7699375 |
| Charles River - Minuteman Path | -0.0 mi | 44 ft | 76 ft | 133174 |
| Browing Fields & Pigeon Hill Loop | -0.0 mi | 0 ft | 17 ft | 10626855 |
| Groton Town Forest Race 9.5 mile Loop | -0.0 mi | 746 ft | 684 ft | 7699374 |
| ACROSS Lexington Route H | -0.0 mi | 120 ft | 156 ft | 11000352 |
| Hilltop Loop Trail | -0.0 mi | 90 ft | 84 ft | 7591387 |
| ACROSS Lexington Route L | -0.0 mi | 243 ft | 199 ft | 11000509 |
| Kennedy Pond Loop | -0.0 mi | 70 ft | 106 ft | 11248186 |
| Poole Sachs Davis Loop | -0.0 mi | 61 ft | 130 ft | 7542001 |
| Woodward Trails | -0.0 mi | 99 ft | 103 ft | 7535203 |
| Middlesex Canal Trail | -0.0 mi | 0 ft | 0 ft | 7341076 |
| Lyons-Cutler Loop | -0.0 mi | 0 ft | 0 ft | 11252371 |
| Punkatasset Estabrook Loop | -0.0 mi | 353 ft | 359 ft | 11261166 |
| Whipple Hill Locke Farm Loop | -0.0 mi | 423 ft | 392 ft | 11261353 |
| Charles River Path | -0.0 mi | 17 ft | 17 ft | 7156899 |
| Mattison Field Trail yellow | -0.0 mi | 18 ft | 43 ft | 6622436 |
| Codman Forest Loop | -0.0 mi | 72 ft | 64 ft | 11295281 |
| BCT Section 7 Concord/Lincoln | -0.0 mi | 188 ft | 160 ft | 11296433 |
| BCT 7 Lincoln/Wayland | -0.0 mi | 553 ft | 412 ft | 11298435 |
| BCT 5a & 6 Billerica/Bedford/Concord | -0.0 mi | 144 ft | 178 ft | 11307398 |
| BCT 6 Acton/Concord | -0.0 mi | 348 ft | 358 ft | 11315083 |
| Tri-Community Greenway | -0.0 mi | 85 ft | 38 ft | 11329219 |
| Buelher Winthrop Main Trails | -0.0 mi | 51 ft | 42 ft | 6618806 |
| Western Greenway | -0.0 mi | 488 ft | 437 ft | 5810262 |
| ACROSS Lexington Route F | -0.0 mi | 432 ft | 399 ft | 5694655 |
| ACROSS Lexington Route E | -0.0 mi | 86 ft | 117 ft | 5694592 |
| Alewife Brook Greenway | -0.0 mi | 0 ft | 0 ft | 11890261 |
| Acorn Trail | -0.0 mi | 98 ft | 89 ft | 5594419 |
| Watertown-Cambridge Greenway | -0.0 mi | 0 ft | 21 ft | 13472744 |
| Blue Trail | -0.0 mi | 47 ft | 67 ft | 15663591 |
| Green Trail | -0.0 mi | 63 ft | 86 ft | 15663593 |
| Red Trail | -0.0 mi | 33 ft | 112 ft | 15663594 |
| Inman Square to BU Bridge | -0.0 mi | 0 ft | 0 ft | 15987585 |
| Red-Tail Trail | -0.0 mi | 0 ft | 0 ft | 5568005 |
| White Trail | -0.0 mi | 491 ft | 571 ft | 5518986 |
| Kingfisher Trail | -0.0 mi | 0 ft | 86 ft | 17576860 |
| Burns Hill Loop Trail | -0.0 mi | 261 ft | 186 ft | 17576861 |
| Squannacook River Rail Trail | -0.0 mi | 53 ft | 0 ft | 17937659 |
| ALD ACROSS Lexington Route D | -0.0 mi | 258 ft | 37 ft | 5506423 |
| Estabrook Concord-Carlisle | -0.0 mi | 153 ft | 109 ft | 4144310 |
| ALB ACROSS Lexington Route B | -0.0 mi | 31 ft | 55 ft | 4119988 |
| Great Meadows Bird Observer Trail | -0.0 mi | 0 ft | 0 ft | 3997673 |
| Circuit Trail Bedford (Inner) | -0.0 mi | 133 ft | 109 ft | 3989407 |
| Pegan Cove | -0.0 mi | 0 ft | 0 ft | 18910826 |
| Circuit Trail Bedford (Outer) | -0.0 mi | 430 ft | 358 ft | 3977729 |
| Orange Trail - College Rock Park | -0.0 mi | 144 ft | 40 ft | 2152234 |
| Coyote Track | -0.0 mi | 0 ft | 36 ft | 20157975 |
| Fox Track | -0.0 mi | 0 ft | 0 ft | 20158002 |
| Goat Track | -0.0 mi | 59 ft | 83 ft | 20158055 |
| Red Tail Track | -0.0 mi | 28 ft | 0 ft | 20158075 |
| Snowmaking Area | -0.0 mi | 24 ft | 38 ft | 20158344 |
| The Flats/John Hart Track | -0.0 mi | 0 ft | 0 ft | 20158345 |
| Massport Designated Trail | -0.0 mi | 17 ft | 23 ft | 2023916 |
| Crystal Spring Trail | -0.0 mi | 276 ft | 246 ft | 1115862 |
| Mystic Highlands Greenway | -0.0 mi | 0 ft | 0 ft | 21320151 |
| Historic Trail | -0.0 mi | 185 ft | 95 ft | 1099538 |
| Flat Rock Trail | -0.0 mi | 174 ft | 0 ft | 21619240 |
| Dark Hollow Pond Trail | -0.0 mi | 149 ft | 122 ft | 359540 |
| Salmon Brook Trail | -0.0 mi | 20 ft | 32 ft | 21619243 |
| Long Pond Nature Trail | -0.0 mi | 51 ft | 135 ft | 310507 |
| Mclains/Fitch Woods | -0.0 mi | 92 ft | 195 ft | 8258655 |
| Minuteman Bikeway | -0.0 mi | 104 ft | 134 ft | 147539 |
| Groton Hills Trail | -0.0 mi | 447 ft | 327 ft | 8258656 |
| Gamlin Crystal Springs | -0.0 mi | 295 ft | 326 ft | 8258662 |
| East Groton Tour | -0.0 mi | 590 ft | 680 ft | 8258704 |
| Wharton Plantation Trail | -0.0 mi | 233 ft | 227 ft | 8258705 |
| Wattles Pond Loop | -0.0 mi | 27 ft | 26 ft | 8258729 |