This is a listing of the water caches through the first 700 miles of the PCT from Campo to Kennedy Meadows. Most, if not all, of the southern California portion is desert. Even the mountainous regions with snow fall could be considered part of the desert since rainfall is not plentiful.
The water caches are not always 100% reliable! They may no longer be there next year, or empty, or bottles left behind by car campers (where applicable), or not resupplied during the early and late hiking season. One trail angel said, "A horse can consume 5 gallons easily." The following list only shows caches with at least 2 gallons and not empty at the time I encountered them. Some water caches are actually near water sources, such as the cache next to a horse water container at mile 53. Miles and landmarks are based on the Pacific Crest Trail Data Book (2001 edition) by Benedict Go. Most of the caches are within 1/4 mile of or exactly at the mileage marker. Thank you trail angels!
| Mile | Landmark | Comment |
| 2.3 | Cross Highway 94 | May be for immigrants |
| 53.0 | Pioneer Mail Trailhead | Water also available from horse trough |
| 62.7 | Mason Valley Truck Trail? | Trail Ratz cache near here, this is one I forgot to mark the exact location |
| 76.9 | Reach Highway S2 | San Felipe creek may be contaminated; Trail Ratz (Dave,Dave,John) cache |
| 77.7 | Cross Highway S2 | Cache by trail angel from Juliann? Very small hiker box |
| 94.4 | Cattle gate | Cache at gate by residents who live 1.5 miles away? |
| 112.1 | Privately operated campground | Cache on picnic table |
| 128.3 | Chihuahua Valley Road | Good thing cache was here! Supply .30 miles NE was empty from hiker note |
| 144.8 | Sandy Jeep Road | Cache by Bear and Ziggy, who run the Hiker Oasis; I found a banana |
| 153.7 | Pines-to-Palms Highway 74 | Trail Ratz cache behind small PCT wall, which is also a memorial to a ranger |
| 241.5 | Mission Creek Trail Camp | Not a cache, but supposedly spring 150 yards off trail at horse camp |
| 252.7 | 1/2 mile from animal rental | Note stating "dinner at 5:30 pm, shower, and place for tent" |
| 315.7 | Highway 173 | After road crossing; plenty of natural water before highway however |
| 350.7 | Jeep road | Last of many Trail Ratz cache |
| 403.6 | Three Points on Angeles Hwy | Empty ice chest on trail; water bottle and plastic container on top of restroom |
| 426.3 | Big Buck Trail Camp | Cache on trail by Geezer; no water at Messenger Flats 6/14/2003 |
| 465.2 | Bouquet Canyon Road 6N05 | First of many caches by the Andersons |
| 471.3 | Road 6N09 | Dubbed the Oasis; only cache I found a soda and a beer left |
| 477.6 | San Francisquito Road | Candy/food cache at picnic table after road crossing; only cache I found candy |
| 477.6 | San Francisquito Road | 5-gallon container at ranger station .15 miles from trail left by the Andersons |
| 481.7 | Tule Canyon Road 7N01 | 2 gallon cache before crossing road |
| 492.2 | Intersection with Upper Shake | |
| 494.5 | Canfield family water cache around this mile on trail | |
| 494.8 | Junction above Shake Canyon | Last Anderson cache |
| 509.3 | Pine Canyon Road | Last Canfield cache; cooler full of empty containers in creek |
| 539.0 | Tylerhorse Canyon | Not a cache, but stream water running very well on 6/21/2003 |
| 555.1 | Tahachapi-Willow Springs Rd | Cache about 25 yards from register; water from creek also |
| 563.7 | Cameron Road | Cache after overpass crossing Highway 58 |
| 564.9 | Cameron Road | Cache under abandoned truck camper shell |
| 611.8 | Kelso Valley Road | Mrs. Barcick cache |
| 627.2 | Bird Spring Pass | Water caches on each side of dirt road |
| 676.1 | Canebrake Road | Water from stream on trail before dirt road or go to campsite .25 miles NE |
| 678.1 | Fox Mill Spring | Not a cache, but water available from pipe into trough |
| 688.5 | Creek after Rockhouse Basin | No cache, DRY!!! Two guys who do the water report for this section |
| 691.7 | Seasonal Creek | No cache, DRY!!! suggest it may be due to the shadeless forest from |
| 703.3 | Crag Creek | No cache, DRY!!! a large fire (S. Williamson and S. Strong) |
| 1392.5 | Road 22 | I skipped ahead to northern California and heard about cache from 4 hikers |