Pokémon

A map with all Fieldlands encounters can be found here. That page also contains details about spawn rates and levels. The table below just shows a quick overview of the Pokémon that can be found here.

Ground

	Bidoof		Bibarel		Starly		Staravia		Staraptor		Shinx
	Luxio		Luxray		Wurmple		Silcoon		Beautifly		Cascoon
	Dustox		Ponyta		Eevee		Zubat		Golbat		Drifloon
	Drifblim		Kricketot		Kricketune		Buizel		Mothim		Geodude
	Stantler		Munchlax		Paras		Pichu		Pikachu		Abra
	Kadabra		Chimchar		Monferno		Buneary		Psyduck		Combee
	Scyther		Mime Jr.		Mr. Mime		Aipom		Shellos (West)		Gastrodon (West)
	Happiny		Chansey		Machop		Machoke

Water

Magikarp

Gyarados

Qwilfish

Air

Staraptor

Gyarados

Togekiss

Shaking trees

Burmy (Plant)

Wormadam (Plant)

Cherubi

Cherrim

Combee

Shaking ores

Geodude

Graveler

Static alphas

	Bibarel		Staravia		Luxio		Rapidash		Golbat		Kricketune
	Floatzel		Graveler		Stantler		Snorlax		Parasect		Alakazam
	Infernape		Lopunny		Scyther		Heracross		Magikarp		Gyarados
	Blissey

Special encounters

Pokémon		Level	Area	Circumstances
	Bidoof	3	Aspiration Hill	Required catch during Mission 2: The Galaxy Team's Entry Trial.
	Starly	3	Aspiration Hill	Required catch during Mission 2: The Galaxy Team's Entry Trial.
	Shinx	2	Aspiration Hill	Required catch during Mission 2: The Galaxy Team's Entry Trial.
	Alpha Kricketune	12	Deertrack Heights	Required battle during Mission 5: A Request from Mai. It can be captured or defeated.
	Kleavor	18	Grandtree Arena	Required noble battle during Mission 7: The Frenzy of the Lord of the Woods.
	Alpha Goodra	58	Verity Cavern	Required battle during Mission 14: The Trial of Lake Verity. It can be captured or defeated.
	Alpha Vespiquen	60	Grueling Grove	Required battle during Mission 20: The Researcher of Myths. It can be captured or defeated.
	Mesprit	70	Verity Cavern	Required catch to complete Mission 21: The Plate of the Lakes.
	Ponyta (Shiny)	15	Horseshoe Plains	Required catch to complete Request 19: A Peculiar Ponyta.
	Chimchar	12	Windswept Run	Required catch to complete Request 20: The Mysterious Will-o'-the-Wisp.
	Paras (3x)	50	Nature's Pantry	Required battle to complete Request 77: Gone Astray... in the Fieldlands. They can be captured or defeated.
	Shaymin	70	Floaro Gardens	Required catch to complete Request 92: A Token of Gratitude.
	Landorus	70	Ramanas Island	Required catch to complete Request 94: Incarnate Forces of Hisui.
	Zorua	27-29	Ramanas Island	They only appear during Request 95: A New Anomaly. They do not have to be interacted with, but can be captured or defeated.
	Alpha Onix	60	Oreburrow Tunnel	Required battle to complete Request 103: Digging for Tomorrow. It must be defeated.
	Kleavor	70	Grandtree Arena	Optional noble rematch.

Space-time distortions

For more details on spawn rates and levels, see this page.

Eevee

Leafeon

Sylveon

Toxicroak

Ursaring

Onix

Steelix

Lickitung

Lickilicky

Haunter

Gengar

Sneasel (Johtonian)

Weavile

Mass outbreaks

For more details on spawn rates and levels, see this page.

	Bidoof		Bibarel		Starly		Staravia		Staraptor		Shinx
	Luxio		Luxray		Wurmple		Silcoon		Beautifly		Cascoon
	Dustox		Ponyta		Rapidash		Eevee		Zubat		Golbat
	Kricketot		Kricketune		Buizel		Floatzel		Stantler		Paras
	Parasect		Pichu		Pikachu		Abra		Kadabra		Chimchar
	Monferno		Buneary		Cherubi		Psyduck		Golduck		Combee
	Scyther		Mime Jr.		Mr. Mime		Magikarp		Gyarados		Shellos (West)
	Gastrodon (West)		Qwilfish		Happiny		Chansey

Massive mass outbreaks

For more details on spawn rates and levels, see this page. The list below includes both the base species that can appear in mass outbreaks and their evolved forms, since evolved forms can appear as part of an outbreak or an extra wave.

These can only be found if the player has the free Daybreak update.

	Bidoof		Bibarel		Starly		Staravia		Staraptor		Shinx
	Luxio		Luxray		Wurmple		Silcoon		Beautifly		Cascoon
	Dustox		Ponyta		Rapidash		Zubat		Golbat		Crobat
	Drifloon		Drifblim		Kricketot		Kricketune		Buizel		Floatzel
	Geodude		Graveler		Golem		Stantler		Wyrdeer		Munchlax
	Snorlax		Paras		Parasect		Pichu		Pikachu		Raichu
	Abra		Kadabra		Alakazam		Chimchar		Monferno		Infernape
	Buneary		Lopunny		Scyther		Kleavor		Mime Jr.		Mr. Mime
	Shellos (West)		Gastrodon (West)		Spheal		Sealeo		Chatot		Zorua
	Zoroark

Items

Overworld

Apricorn	Medicinal Leek	Vivichoke	King's Leaf	Dazzling Honey	Wood
Bugwort	Pep-Up Plant	Springy Mushroom	Swordcap	Iron Barktongue	Iron Chunk

Trees

This map shows the locations of all trees that be attacked and the items they can drop.

Apricorn	Spoiled Apricorn	Oran Berry	Sitrus Berry	Cheri Berry
Leppa Berry	Razz Berry	Nanab Berry	Pinap Berry

Ores

This map shows the locations of all ores that be attacked and the items they can drop.

Tumblestone	Black Tumblestone	Sky Tumblestone	Iron Chunk
Stardust	Water Stone	Fire Stone	Thunder Stone

Space-time distortions

Exact appearance rates can be found on the space-time distortions page.

Red Shard	Blue Shard	Green Shard	Stardust	Star Piece	Nugget
Comet Shard	Upgrade	Dubious Disc	Electirizer	Magmarizer	Protector
Linking Cord	Water Stone	Fire Stone	Thunder Stone	Leaf Stone	Moon Stone
Sun Stone	Dusk Stone	Shiny Stone	Dawn Stone	Ice Stone

Ursaluna

The following items can be found by digging with Ursaluna with the specified rates.

Item	Rate
Ball of Mud	20%
Iron Chunk	14%
Candy Truffle	12%
Springy Mushroom	12%
Star Piece	10%
Sun Stone	7%
Black Augurite	7%
Tumblestone	4%
Black Tumblestone	4%
Sky Tumblestone	4%
Moon Stone	3%
Peat Block	3%

Camp shops

The items sold here are the same as those sold in the general store in Jubilife Village, and require the same requests to be completed to expand the inventory.

Camp Shops

Item	Price	Progression requirement
Poké Ball	100	N/A
Great Ball	300	After completing Request 43: More New Wares
Ultra Ball	600	After completing Request 71: New Wares Yet Again
Heavy Ball	120	After completing Request 23: Getting Ahold of New Wares
Leaden Ball	320	After completing Request 61: Even More New Wares
Feather Ball	140	After completing Request 23: Getting Ahold of New Wares
Wing Ball	340	After completing Request 61: Even More New Wares
Potion	200	N/A
Super Potion	400	After completing Request 23: Getting Ahold of New Wares
Hyper Potion	800	After completing Request 43: More New Wares
Max Potion	2000	After completing Request 61: Even More New Wares
Full Restore	2500	After completing Request 71: New Wares Yet Again
Full Heal	600	After completing Request 43: More New Wares
Revive	700	N/A
Max Revive	3000	After completing Request 71: New Wares Yet Again
Stealth Spray	800	After completing Request 43: More New Wares
Sticky Glob	800	After completing Request 71: New Wares Yet Again
Smoke Bomb	400	After completing Request 23: Getting Ahold of New Wares
Scatter Bang	500	After completing Request 43: More New Wares
Mushroom Cake	400	After completing Request 23: Getting Ahold of New Wares
Honey Cake	400	After completing Request 23: Getting Ahold of New Wares
Grain Cake	400	After completing Request 43: More New Wares
Bean Cake	400	After completing Request 61: Even More New Wares
Salt Cake	400	After completing Request 71: New Wares Yet Again
Cake-Lure Base	100	N/A

Obtained as part of the story

Item	Mission	Location	Details
Poké Ball (20x)	Mission 2: The Galaxy Team's Entry Trial	Aspiration Hill	Obtained from Rei/Akari if the player has no Poké Balls in their inventory
Crafting Kit	Mission 2: The Galaxy Team's Entry Trial	Horseshoe Plains	Obtained from Rei/Akari after seeing all their tutorials
Potion recipe	Mission 2: The Galaxy Team's Entry Trial	Horseshoe Plains	Obtained from Rei/Akari after seeing all their tutorials
Vivichoke (5x)	Mission 5: A Request from Mai	Deertrack Path	Obtained from Mai after defeating her
Celestica Flute	Mission 7: The Frenzy of the Lord of the Woods	Heights camp	Obtained from Adaman
Mind Plate	Mission 7: The Frenzy of the Lord of the Woods	Heights camp	Obtained from Wyrdeer after obtaining it as a rideable Pokémon
Forest Balms	Mission 7: The Frenzy of the Lord of the Woods	Grandtree Arena	Obtained before battling Kleavor
Insect Plate	Mission 7: The Frenzy of the Lord of the Woods	Heights camp	Obtained from Kleavor after quelling it
Sitrus Berry (3x)	Mission 7: The Frenzy of the Lord of the Woods	Grandtree Arena	Obtained from Irida after defeating Kleavor
Mesprit's Plume	Mission 14: The Trial of Lake Verity	Verity Cavern	Obtained from Mesprit after completing its trial
Stone Plate	Mission 20: The Researcher of Myths	Grueling Grove	Obtained after catching or defeating the alpha Vespiquen
Draco Plate	Mission 21: The Plate of the Lakes	Verity Cavern	Obtained from Mesprit if it is the third of the emotion Pokémon to be caught

Other

Item	Location	Details
Cake-Lure Base (5x)	Fieldlands camp	Obtained from Morel during Request 6: Mushroom Cake Marketing
Gracidea	Fieldlands camp	Obtained from Medi during Request 92: A Token of Gratitude
Exp. Candy M (3x)	Grandtree Arena	Reward from Lian for defeating Kleavor in a rematch
Exp. Candy L	Grandtree Arena	Reward from Lian for defeating Kleavor in a rematch without taking damage

The player can get rewards for bursting balloons in the balloon minigame at the Heights camp. If you have information about exactly what items can be received this way, please contact me.

Trainers

Trainer	Party	Location	Notes
Mai	Munchlax lv.10	Deertrack Path	During Mission 5: A Request from Mai
Lian	Goomy lv.15	Grandtree Arena	During Mission 7: The Frenzy of the Lord of the Woods
Irida	Glaceon lv.17	Grandtree Arena	During Mission 7: The Frenzy of the Lord of the Woods

Miss Fortunes

The Miss Fortunes may occasionally be present around Obsidian Fieldlands and can be battled. Per Bulbapedia, all three members' teams can be various levels depending on the player's progress through the story. However, I am not sure if it is possible to see all these levels; the earliest I have heard about them being present is during the red sky event between Missions 13 and 18. If you have any information about when they begin to show up, please contact me.

Trainer	Party	Potential levels
Charm	Rhydon Gengar	Rhydon: 37, 40, 43, 46, 49, 52, 55, 58, 61, 64 Gengar: 38, 41, 44, 47, 50, 53, 56, 59, 62, 65
Clover	Abomasnow	38, 41, 44, 47, 50, 53, 56, 59, 62, 65
Coin	Toxicroak	40, 43, 46, 49, 52, 58, 61, 64

After defeating one of them, you will receive some valuable items. I have only gotten 4 Nuggets, but apparently 5 Nuggets and some amount of Stardust are possible. Again, please contact me if you know more.