As usual, start from the hideout.
SAFE LOCATION
Find the train tracks at the southwest corner of the map and start following it to the east. As soon as it heads northeast, look for the large building with the "6" sign. It's on the roof of that building.
Your reward for this episode is Muggshot's Coin, which lets you pickpocket more coins from enemies.
CLUE BOTTLES
#1) This bottle is located underneath the hideout, on a rock.
#2) Southwest of the hideout is a building, with the clue bottle on the roof.
#3) Go south from the previous bottle, across the train tracks, and you should see it sitting on the roof of a small outhouse.
#4) West of the last one is the clue bottle sitting on a rock right next to the tracks.
#5) Go east from #4 and get on top of the building just east of the water tower. The clue bottle is on top of the high part of the roof.
#6) From #5, get on the wires and follow them south. Get on the next set of wires and go to the end, where you'll see the clue bottle sitting on the building near a treasure.
#7) This one is sitting in front of the top entrance of the Saloon southeast of the previous bottle.
#8) Just north of #7 is the bottle sitting on top of a rock.
#9) This clue bottle is on the southcentral border of the map, near the edge of a cliff.
#10) This clue bottle is almost directly north of the previous one. Get on the roof where the safe is located, then cross the rope that's connected to the east, where you'll find the clue bottle on a small roof.
#11) Go back to the roof with the safe and find the rope that heads north. The clue bottle will be on this rope.
#12) Continue north to the next building from the previous one. You should see a rope leading slightly west to the roof of a taller building. The clue bottle is on the roof of the taller building.
#13) Head northeast from the last bottle and you should see the train tracks. There's a pole you can climb not that far, with the clue bottle on top of it.
#14) Get on the ground and head slightly southeast. You should see a building that you can go through, which is a small barn. Inside here is a trampoline you can use to reach the second floor, where you'll find the clue bottle. Note that this is inside and not on the outside of the building.
#15) This one is on the roof of the same building as the previous bottle, on the little chimney pipe on the north end.
#16) To the north of the last one is the sheriff's office, which is easily distinguishable by the spinning sheriff's star on top of it. In between that building and where #15 was is a small building with two flagpoles on the sides. Jump from a high place and use the flagpoles to get on top of the small building to find this clue bottle.
#17) Go southeast a little bit until you spot a covered tunnel. Before going west through it, look to the east and you should see a clue bottle underneath a canopy.
#18) Go through the tunnel from the previous one and in the middle, open area, there's a rope connecting the two roof portions of the tunnels. The clue bottle is on this rope.
#19) In this same open area, there should be a small ledge you can drop down to with this clue bottle.
#20) Go all the way through the tunnel now, and you'll be at a spot where the tracks split. Follow the tracks that lead to a dead end and look immediately to your right to find a pole you can climb. This leads to a small platform with the clue bottle.
#21) This next bottle will require you to get on top of the train that makes its round, as well as unlock the Jailbird Costume. From the previous one, head back to the fork and jump on top of the nearby rocks. Wait for the train and jump on top of it as it passes. Keep an eye on your right side and jump off when you spot the first platform. You know you're on the right platform when you see a crate that requires the Jailbird Costume to move. Do that and use that same crate to get on the roof, where you'll find the clue bottle (there's a Sly Mask up here, too).
#22) Find Toothpick's building, which has the spinning sheriff's star on top and is southwest from the last bottle. To the east of this is a hotel. Get on the roof and you'll find the clue bottle on a rope that connects to another hotel.
#23) This one is on the roof of Toothpick's building.
#24) Go to the nothernmost point of the map. Facing north, the clue bottle is on the building to your left.
#25) South of the last bottle is a small building right before the train tracks. The clue bottle is on top of the building.
#26) From the last bottle, jump on the wire that connect the poles and head south, jumping over to the next wire. Facing south, when you get to the pole from the second wire, look to your left to see a clue bottle on top of some rocks.
#27) Go south and you should see the clue bottle on top of the porch of the building just south of the previous bottle.
#28) Just north of #27 are some stairs that go down, so take them. You should see some stagecoaches to the north. The clue bottle is on top of one of these coaches.
#29) From the coaches where the previous bottle was, head west and jump over some rocks for a passage that leads behind one of the buildings. The clue bottle is in that little passage.
#30) Your hideout should be close by, so climb the stairs leading to the entrance. The clue bottle is on a rock behind your hideout.