| Quadrangle Name | Scale 1: | Coverage & Subject | Source |
| La Sal 15' | see: Buckeye Res., La Sal East, Mt. Peale, Wray Mesa | ||
| La Sal East | 24k | complete | MF 124 |
| La Sal East | 24k | complete | I 183 |
| La Sal East | 48k | complete | P 324 pl.1 |
| La Sal East | 62k | complete | P 508 pl.1 |
| La Sal East | 62k | complete | P 508 pl.5 |
| La Sal East | 63k | complete | P 324 pl.4 |
| La Sal East | 63k | N 1/2 | P 324 pl.6 |
| La Sal East | 63k | NW 1/4 | P 294i pl.39 |
| La Sal East | 108k | S ¼ | P 988B fig.4 |
| La Sal East | 120k | complete | P 316c pl.6 |
| La Sal East | 125k | complete | P 316f pl.14 |
| La Sal East | 125k | complete | P 316f pl.14 |
| La Sal Junction | 24k | complete | MF 142 |
| La Sal Junction | 24k | complete | I 240 |
| La Sal Junction | 48k | complete | P 324 pl.1 |
| La Sal Junction | 62k | complete | B 841 pl.2 |
| La Sal Junction | 63k | NE 1/2 | P 324 pl.4 |
| La Sal Junction | 120k | complete | P 316c pl.6 |
| La Sal Junction | 125k | complete | P 316f pl.14 |
| La Sal Junction | 125k | complete | P 316f pl.14 |
| La Sal Junction 15' | see: Kane Springs, La Sal Junction, La Sal West, Mt. Tukuhnikivatz | ||
| La Sal West | 24k | complete | MF 143 |
| La Sal West | 24k | complete | I 173 |
| La Sal West | 48k | complete | P 324 pl.1 |
| La Sal West | 62k | W 1/2 | B 841 pl.2 |
| La Sal West | 63k | complete | P 324 pl.4 |
| La Sal West | 63k | N 1/2 | P 324 pl.6 |
| La Sal West | 63k | N 1/2 | P 294i pl.39 |
| La Sal West | 108k | SE ¼ | P 988B fig.4 |
| La Sal West | 120k | complete | P 316c pl.6 |
| La Sal West | 125k | complete | P 316f pl.14 |
| La Sal West | 125k | complete | P 316f pl.14 |
| Lady Laird Peak | 1k | SE 1/4 | B 1082h fig.50 |
| Lady Laird Peak | 1k | N 1/2 | B 1082h pl.22, 23 & 24 |
| Lady Laird Peak | 2k | N 1/2 | B 1082h pl.21 |
| Lady Laird Peak | 4k | C 1/4 | Ur 41 |
| Lady Laird Peak | 6k | SE 1/4 | B 1082h fig.49 |
| Lady Laird Peak | 12k | NW 3/4 | B 1082h pl.20 |
| Lady Laird Peak | 36k | C 1/4 | C 623 fig.1 |
| Lady Laird Peak | 63k | N 1/3 | I 1176 |
| Lake Canyon 15' | see: Alcove Canyon, Halls Crossing, Halls Crossing NE, Nokai Dome | ||
| Lake Fork Mtn. | 63k | complete | OM 115 |
| Lake Fork Mtn. | 125k | complete | P 61 pl.IV |
| Lake Fork Mtn. | 125k | NW 1/4 | B 1230i pl.1 |
| Lake Mtn. | 42k | complete | Um 2 fig.29 p.67 |
| Lake Mtn. | 63k | complete | B 1007 pl.1 |
| Lake Mtn. | 63k | SE 1/2 [coal] | B 1007 pl.4 |
| Lake Mtn. | 63k | complete | OM 82 |
| Lake Mtn. | 125k | complete | Ub 72 |
| Lake Mtn. | 125k | complete | Ums 16 |
| Lake Mtn. | 125k | complete | P 61 pl.IV |
| Lake Ridge | 125k | complete | Ub 115 pl.1 |
| Lake Ridge | 125k | complete | Ums 57 |
| Lakeside | 125k | complete | Ub 115 pl.1 |
| Lakeside | 125k | complete | Ums 57 |
| Laketown | 42k | N 1/2 | Ur 40 pl.1 |
| Laketown | 42k | N ½ | Ub 96 pl.2 |
| Laketown | 63k | E 3/4 | B 430h pl.XII |
| Laketown | 125k | complete | B 923 pl.1 |
| Lamerdorf Peak | 4.8k | SW 1/4 | Us 12 pl.3 |
| Lamp Stand | 24k | complete | I 18 |
| Lamp Stand | 24k | complete | MF 154 |
| Lamp Stand | 48k | complete | B 1229 pl.1 |
| Lamp Stand | 96k | complete [tectonic] | B 1229 pl.2 |
| Lamp Stand | 125k | complete [coal] | I 1033C |
| Lamp Stand | 125k | complete [overburden] | I 1033D |
| Lamp Stand | 125k | complete | I 1033G |
| Lamp Stand | 125k | complete [landslide] | I 1033H |
| Lampo Junction | 125k | complete | Ub 115 pl.1 |
| Lampo Junction | 125k | complete | Ums 57 |
| Lance Canyon | 64k | complete | OM 171 sh.1 |
| Lance Canyon | 100k | complete | Ums 55A |
| Lance Canyon | 100k | complete [geol & mineral reserves] | Ums 55D |
| Lapoint | 63k | N 14 | B 1007 pl.1 |
| Lapoint | 125k | complete | Ub 72 |
| Lapoint | 125k | complete | Ums 16 |
| Lark | 20k | W 1/3 | P 111 pl.XXXIII |
| Lark | 21k | W 1/4 | P 38 |
| Lark | 36k | SW 1/4 | P 629b fig.2 |
| Lark | 36k | SW ¼ | P 629B fig.2 |
| Lark | 63k | complete | Ub 69 |
| Lark | 63k | complete | Ums 15 |
| Lark | 95k | complete [hydrography] | Uw 7 fig.6 |
| Lark | 95k | complete | Uw 7 fig.11 |
| Lark | 95k | complete [faults, hydrothermic] | Uw 7 fig.30 |
| Lark | 97k | W 1/4 | Ub 69 fig.47 |
| Lark | 100k | complete | Ums 54A |
| Lark | 100k | complete | MF 1198 |
| Leefe | 125k | complete | B 923 pl.1 |
| Lehi | 1k | SE 1/4 | P 257a fig.11 |
| Lehi | 1k | SE 1/4 | P 257a fig.12 |
| Lehi | 62k | S 1/2 | P 257a pl.1 |
| Lehi | 62k | S 2/3 | P 257 pl.1 |
| Lehi | 62k | S 2/3 [eng. geol.] | P 257 pl.2 |
| Lehi | 63k | NW 1/4 | Ub 69 |
| Lehi | 63k | NW 1/4 | Ums 15 |
| Lehi | 95k | N 1/2 [hydrography] | Uw 7 fig.6 |
| Lehi | 95k | complete | Uw 7 fig.11 |
| Lehi | 95k | complete [faults, hydrothermic] | Uw 7 fig.30 |
| Lehi | 100k | complete | Ums 55A |
| Lehi | 100k | complete [geol & mineral reserves] | Ums 55D |
| Leidy Peak | 125k | S 1/4 | Ub 72 |
| Leidy Peak | 125k | N 3/4 | Ums 13 |
| Leidy Peak | 125k | S 1/4 | Ums 16 |
| Leidy Peak | 125k | N 3/4 | Ub 66 maps 1-8 |
| Leidy Peak | 125k | complete | P 61 pl.IV |
| Lemay | 125k | complete | Ub 115 pl.2 |
| Lemay | 125k | complete | Ums 57 |
| Lemay Island | 125k | complete | Ub 115 pl.2 |
| Lemay Island | 125k | complete | Ums 57 |
| Lila Point | 6k | NW 1/4 | I 582 |
| Lila Point | 6k | W 2/3 [eng. geology, mine workings, overburden] | I 704 |
| Lila Point | 42k | complete | Um 3 fig.42 p.405 |
| Lila Point | 48k | complete | I 798 |
| Lila Point | 62k | S ¾ | P 693 fig.21 |
| Lila Point | 63k | W 2/3 | B 852 pl.8 |
| Lime Mtn. | 63k | complete [aeromag] | GP 598 |
| Lime Mtn. | 63k | S 1/4 | P 80 pl.1 |
| Lime Mtn. | 63k | SW 1/4 | Ub 68 pl.IV |
| Lime Mtn. | 125k | S 1/4 | B 945 pl.32 |
| Limekiln Knoll | 125k | complete | Ub 115 pl.1 |
| Limekiln Knoll | 125k | complete | Ums 57 |
| Lincoln Point | 48k | complete | P 257b pl.5 |
| Lincoln Point | 48k | complete | P 257 pl.5 |
| Lincoln Point | 62k | N 1/2 | P 257a pl.1 |
| Lincoln Point | 62k | N 1/2 | P 257 pl.1 |
| Lincoln Point | 62k | N 1/2 [eng. geol.] | P 257 pl.2 |
| Lincoln Point | 100k | complete | Ums 55A |
| Lincoln Point | 100k | complete [geol & mineral reserves] | Ums 55D |
| Lion Canyon | 125k | complete | P 548 pl.1 |
| Lisbon Gap | 24k | complete | MF 150 |
| Lisbon Gap | 24k | complete | I 157 |
| Lisbon Gap | 120k | complete | P 316c pl.6 |
| Lisbon Valley | 24k | complete | MF 151 |
| Lisbon Valley | 24k | complete | I 158 |
| Lisbon Valley | 108k | N ¾ | P 988B fig.4 |
| Lisbon Valley | 120k | complete | P 316c pl.6 |
| Lisbon Valley 15' | see: Lisbon Gap, Lisbon Valley, Sop Canyon, Summit Point | ||
| Little Creek Mtn. | 24k | complete | I 147 |
| Little Creek Mtn. | 125k | complete | P 220 pl.2 |
| Little Creek Peak | 125k | SE 1/2 [hydrologic] | W 1836 pl.2 |
| Little Wild Horse Mesa | 125k | N 1/4 | B 1239 pl.2 |
| Loa 1 NE | see: Lyman | ||
| Lockhart Basin | 24k | complete | I 72 |
| Lockhart Basin | 24k | complete | I 670 |
| Lockhart Basin | 62k | complete | B 841 pl.2 |
| Lockhart Basin | 63k | NW 1/4 | B 908 pl.1 |
| Lockhart Basin | 72k | N 1/2 [structure] | Us 13 fig.3 |
| Lockhart Basin | 125k | complete | P 516c pl.1 |
| Locomotive Springs | 125k | complete | Ub 115 pl.1 |
| Locomotive Springs | 125k | complete | Ums 57 |
| Lofgreen | 50k | complete | Us 51 pl.IIIc |
| Logan | 54k | complete | P 257c pl.6 |
| Logan | 56k | complete | P 257 pl.6 |
| Logan | 100k | complete | Ums 53A |
| Logan | 100k | complete | MF 1198 |
| Logan | 125k | complete | Ums 12 |
| Logan | 125k | complete | Ub 64 maps 1-13 |
| Logan Peak | 125k | complete | Ums 12 |
| Logan Peak | 125k | complete | Ub 64 maps 1-13 |
| Lone Rock | 32k | complete | Ums 24c |
| Lone Rock | 42k | complete | Um 1 fig.49 p.205 |
| Lone Rock | 63k | N 1/4 | Ur 18 fig.1 |
| Lone Rock | 125k | complete [coal] | I 1033C |
| Lone Rock | 125k | complete [overburden] | I 1033D |
| Lone Rock | 125k | complete [landslide] | I 1033H |
| Long Ridge | 48k | complete | MF 634 |
| Long Ridge Res. | 48k | complete | MF 634 |
| Long Ridge SE | 48k | complete | MF 634 |
| Long Ridge SW | 48k | complete | MF 634 |
| Long Valley Junction | 42k | S ½ | Um 1 fig.22 p.53 |
| Long Valley Junction | 62k | complete | P 417c pl.1 |
| Long Valley Junction | 63k | complete | I 494 |
| Long Valley Junction | 63k | S 2/3 | CI 49 |
| Long Valley Junction | 125k | N 1/ [hydrologic] | W 1836 pl.2 |
| Long Valley Junction | 125k | complete | Uw 5 |
| Long Valley Junction | 125k | complete | P 220 pl.2 |
| Loop | see: The Loop | ||
| Lopers Spring | 24k | complete | MF 739 |
| Lopers Spring | 24k | complete | Uo 15 |
| Lopers Spring | 63k | complete | Us 29 pl.5 |
| Lost Creek | see: Lost Creek Dam | ||
| Lost Creek Dam | 42k | S 2/3 | Um 2 fig.5 p.407 |
| Lost Creek Dam | 62k | S 2/3 | B 691 pl.XL |
| Lowe Peak | 36k | NE 1/4 | P 629b fig.2 |
| Lowe Peak | 36k | NE ¼ | P 629B fig.2 |
| Lowe Peak | 48k | N 1/2 | W 1619k pl.1 |
| Lowe Peak | 62k | complete | P 173 pl.12 |
| Lowe Peak | 63k | NE 1/4 | Ub 69 |
| Lowe Peak | 63k | NE 1/4 | Ums 15 |
| Lowe Peak | 95k | N 1/2 [hydrography] | Uw 7 fig.6 |
| Lowe Peak | 95k | complete | Uw 7 fig.11 |
| Lowe Peak | 95k | complete [faults, hydrothermic] | Uw 7 fig.30 |
| Lowe Peak | 97k | N 1/4 | Ub 69 fig.47 |
| Lower Bowns Res. | 24k | complete | MF 111 |
| Lower Bowns Res. | 63k | complete | P 363 pl.1 |
| Lower Bowns Res. | 63k | complete | B 1061d pl.6 |
| Lower Bowns Res. | 66k | SW ¼ | Ums 31 |
| Lower Coyote Spring | 24k | complete | I 266 |
| Lower Coyote Spring | 125k | complete [overburden] | I 1033D |
| Lower Coyote Spring | 125k | complete | I 1033G |
| Lower Coyote Spring | 125k | complete [landslide] | I 1033H |
| Lower Coyote Spring | 125k | complete [coal] | I 1033C |
| Lucin | 125k | complete | Ub 115 pl.2 |
| Lucin | 125k | complete | Ums 57 |
| Lucin 4 NE | 125k | complete | Ub 115 pl.2 |
| Lucin 4 NE | 125k | complete | Ums 57 |
| Lucin 4 NW | 125k | complete | Ub 115 pl.2 |
| Lucin 4 NW | 125k | complete | Ums 57 |
| Lucin 4 SE | 125k | complete | Ub 115 pl.2 |
| Lucin 4 SE | 125k | complete | Ums 57 |
| Lucin 4 SW | 125k | complete | Ub 115 pl.2 |
| Lucin 4 SW | 125k | complete | Ums 57 |
| Lucin NE | 125k | complete | Ub 115 pl.2 |
| Lucin NE | 125k | complete | Ums 57 |
| Lucin NW | 125k | complete | Ub 115 pl.2 |
| Lucin NW | 125k | complete | Ums 57 |
| Lyman | 24k | complete | MF 100 |
| Lyman | 63k | complete | P 363 pl.1 |
| Lyman Lake | 125k | complete | P 61 pl.IV |
| Lynn | 32k | complete | I 672 |
| Lynn | 125k | complete | Ub 115 pl.2 |
| Lynn | 125k | complete | Ums 57 |
| Lynndyl 15' | see: Lynndyl East, Lynndyl West, Lynndyl NW, Tanner Creek Narrows | ||
| Lynndyl NW | 125k | N ¼ | P 516d pl.1 |