I can write a lot of stories about Patti Joon Cave, but I want to explain here why this is my favorite big cave. For a horizontal cave like mine, Patti Joon has a lot to offer. Good climbs, challenging crossings, waterfalls, formations, fascinating crossings, hard-to-reach places most of which I have not seen, opportunities for new discoveries and good flowers.

Good climbs

For some who are looking for mountaineering challenges, the entrance room has a lot to offer. This long room is over 500 feet long and averages 50 feet wide and the ceiling is 30 feet high, with two easy climbs to reach the back. Near the entrance there is a good ascent to a high formation room which connects to the main entrance room at roof level. Most visitors pass through this area to reach the back of the room or to the main waterfall.

If you avoid the ropes laid by previous cavers, there are difficult climbs to reach river levels. Some of these ropes have been around for a long time and should not be used. One of the most challenging climbs is climbing the Raccoon Room, this large room in the middle of the cave surface that allows access to most of the middle levels of the cave. Petty Joon Cave is divided into three levels, the entrance room is long and mostly dry, the middle levels, which are dry passages, make up about 1/3 of the known cave and reach the bottom of the mountain in the north. A difficult climb from this northern part to the Echo Room is the largest cave room. A 100 by 200 foot room with a high ceiling. And the river passages that make up the largest parts of the cave.

Climbing the waterfall leads to the second waterfall, which is much easier to climb, and the upstream passage called Schreiber’s Extension, which has not yet been fully explored.

Challenging transitions

From the main entrance room there are many ways to go deeper into the cave and at the beginning of each of these passages you will have a challenge. Depending on which path you choose, depending on which path you choose, depending on the path of the waterfall, press the pancake. Each path from the main room is like a cave of its own. If you like, try the Labyrinth maze on the lower southeast level of Pettyjohn. If you are looking for a real adventure, discover the extreme northwest part called The Outer Limits. And for a good technical climb, explore the rooms above the dome of Do Echo.


If you like underground waterfalls, you will love Petty Joon Cave. There are two well-sized waterfalls along Schreiber’s Extension. A high waterfall about 4 feet high just beyond Chute and in the outer boundaries. And another one that you have to climb to enter the labyrinth.


The formations are scattered in the cave. The entrance room includes the largest cave room. The signature room and the passage to it are worth seeing for the organization. And just before reaching the volcano chamber there is a beautiful formation room. Other beautiful formations will amaze you along the way in many parts of the cave.

Attractive transitions

The worm tube is a 150-foot-long reptile that is very sturdy and leads to the echo chamber and beyond. Z-Bends are an interesting alternative to pressing pancakes when going to the waterfall or Racoon Room. When you cross the East Stream and the Crowell Domes, there is a steep climb that is a real challenge to climb again. There is a small hole that leads from the bridge room to the Mason-Dixon Passage. And the valley crossing on the way to the waterfall is fun.

Extreme places

Intense places are hard for cavers who love fourteen hour journeys and want to reach their limit. Pettyjohn Cave offers four such areas. The maze, which I just visited at the beginning.

Discovery room at the top of the emerald pool where you have to use the old rope available or do a hard technical climb. To reach this area, a format pole was used first. And I understand that there is a lot to discover outside the Emerald Pool.

External constraints that I am not even sure what level. I narrowed the atmospheric passage in the muddy pressures that eventually pushed me back, and I made the long, dry passages that could be the way. These were ten-hour trips, and I had not yet found the external limitations. I once met Richard Schreiber on his way out of the cave, and he was excited to return to the bottom of the mountain, and I believe he was referring to external limitations. I have a copy of most of his poll notes, but I think I missed one that describes how to get it.

Schreiber’s Format is a long passage with many streams and places to climb along the way. The end is a low-flow passageway that is pulled out and driven into a second low-flow chamber that is blocked by another low-current crawl. This passage continues around the edge of the mountain and draws water from the length of the mountain. This cave is still lower than the valley but below the edge of the mountain.

Possibility of new discoveries

The most promising area that I feel can be developed is the East. There are many holes along the mountain to the east of the entrance, and the Kroll Dome is the easternmost part of the cave, with the exception of the Labyrinth Cave and the Owl Owl. There is a possible clue from the echo room that I want to press one day, but it needs to remove the stone. There is also a large sink at the top of Patti Joon East Mountain, which I believe has leaked water into the reservoir below the entrance room in Patti Joon. Pettyjohn provides much drainage on this side of Pigeon Mountain to reach Ellison Cave, which empties the northern end of the mountain. Recent discoveries have been made at Extra Schreiber’s, Discovery Room and Anamatosis Room. I have 36,117 feet of traversed surface, approximately seven miles (6,935 miles), and a total survey length of 7,127 miles.

Good flowers

Petty Joon Cave is famous for its mud. There are some places where you can open your shoes on sticky items. Crawl all the way through only traffic in the mud with two slits for the knees. I have seen low-level flooding as water flows back from the Nahr Valley crossing, which is narrow and can restrict water flow. Always check the weather forecast before going to the main waterfall. You can read about the disappearance of cavers in the waterfall area for days and explore parts of the cave by clicking on the pictures inside the cave by visiting my web page. I also have other links to stories about Petty John on the homepage.

Source by Hubert Clark Crowell