HIDDEN ITEMS--items that require itemfinder to detect--Gold, Silver & Crystal Versions

Items marked C are in Crystal only and items marked GS are in gold/silver only. Items not marked are in all versions. If I have marked something incorrectly please email me the correction. If you know any not listed please email me. These are only HIDDEN items, NOT items that you receive from people. Routes are listed in playing order, Johto first then Kanto. Ones listed as revised later need confirmation and/or specific instructions. Big thanks to all the contributors, please try to include directions if you can. Even bigger thanks to those who included directions.

New Bark Town: None Currently
Route 29: None Currently
Cherrygrove City: None Currently
Route 30/31: 1 Currently: on Mr. Pokémon's lawn click on the bottom left dancing flower to find a potion
Violet City: 1 Currently: 1)[requires cut] Above the Pokémon center turn right and you will see a tree, use cut on the tree and go straight up to the top. At the top click and you will find a Hyper Potion.
Sprout Tower: None Currently
Route 32: 2 Currently: great ball, super potion revised later
Ruins of Alph: None Currently
Union Cave: : None Currently
Route 33: None Currently
Azalea Town: 1 Currently: behind the slowpoke well face the back wall and press a to find a full heal
Slowpoke Well: None Currently
Ilex Forest: 1 Tip Currently: Every Time you see an indent with nothing there, there are hidden items in the last place to stand. Including an ether, full heal, super potion revised later
Route 34: 1 Currently: pp up, super potion revised later
Goldenrod City: None Currently
Goldenrod City Underground: 3 Currently: 1) In the underground you can find a super potion in the middle of the floor past the first bench 2) In the underground you can find an antidote a couple squares below the locked door on the side passage. 3) in the space between the haircut brothers and the bargain shop there is a parlyz heal.
Route 35: 1 Currently: pp up revised later
National Park: 1 Currently: full heal revised later
Route 36/37: 1 Currently: ether revised later
Ecruteak City: 1 Currently: hyper potion revised later
Burned Tower: 2 Currently: ether, ultra ball revised later
Tin Tower: 3 Currently: Find a Carbos and a full restore on the 5th floor, max potion on 4th floor revised later
Route 38/39: 1 Currently: 1) in the patch of grass where the miltank are grazing outside moo moo farm you can find a nugget.
Olivine City: 1 Currently: hyper potion revised later
Lighthouse: None Currently
Route 40/41: 1 Currently: hyper potion revised later
Whirl Islands: 4 Currently: full restore, max ether, pp up, ultra ball revised later
Cianwood City: 2 Currently: max ether, revive revised later
Route 42: 1 Currently: max potion
Mt. Mortar: 3 Currently: full restore, hyper potion, max repel, max revive revised later
Mahogany Town: None Currently
Route 43: None Currently
Lake of Rage: 3 Currently: go up the right side as far as you can to find a max potion 2) full restore, pp up revised later
Rocket Hideout: 1 Currently: revised later
Radio Tower: (see also goldenrod city underground):1 currently: 1) enter the room with the 3 switches, enter the top chamber on the far left below and to the left of the doorway is a revive.
Route 44: 1 Currently: Elixir revised later
Ice Path: 3 Currently: 1) Basement 2 find a carbos 2) ice heal, max potion revised later
Blackthorn City: None Currently
Dragon's Den: 3 Currently: Max Elixir, Max potion, revive revised later
Route 45/46: 1 Currently: in the water near the mysteryberry tree is a pp up
Dark Cave: 1 Currently: Elixir revised later
Route 26/27: None Currently
Victory Road: 1 Currently: max potion revised later

S.S Aqua: None Currently
Vermillion City: 1 currently: 1) [requires cut]beside the rock near the gym behind the tree you cut is a full heal Route 6: None Currently
Underground Path: 2 Currently 1/2) in the underground path you can can find x-special and full restore. Saffron City: None Currently
Route 8: None Currently
Lavender Town: None Currently
Route 9/10: 1 Currently: Ether revised later
Rock Tunnel: 3 Currently: max potion, x accuracy, x defend revised later
Cerulean City: 1 Currently: 1) surf in the water along the left hand side of the map to find a Berserk Gene
Route 24/25: 1 Currently: 1) in the top left corner there is a rock, on the right side of the rock is a potion
Route 5: None Currently
Diglett's Cave: 1 Currently: max revive revised later
Route 7: None Currently
Celadon City: 2 Currently: on the far right of the map near the bottom ther is a gap in the rocks, enter it and go up to the top to find a pp up, 2) leftovers found in trashcan
Route 16/17/18: 2 Currently: max elixir, max ether revised later
Fuschia City: None Currently
Route 11: 1 Currently: 1) in the top right corner there is a rock just below a berry tree on the right side of the rock is a revive
Route 12/13: 2 Currently: 1) when you enter the maze of fences from the route leading from lavender town go under the fence and go as far left as you can there is a small gap in the fence near a sign on the other side, you will find a calcium 2) Elixir revised later
Route 14/15: None Currently
Route 2: 4 Currently: enter the mze from viridian city at the bottom 1) sharp turn right and you find a revive 2) go back to the left and up and near the top left rock in the set of 4 rockes is a full restore 3) continue going right and up until you see a tree go left and down and you will find a max ether in the gap at the bottom 4)then go left and up and near the top (not very top) you will find a full heal
Pewter City: None Currently
Route 3: None Currently
Mt. Moon: 1 Currently: 1)[rock smash required, Monday only]Outside in the grass field near the pokemart on Monday you will see clefairy dance around a rock, smash it to get a moon stone
Route 4: 1 Currently: 1) when you exit from mt. moon go up inter a little squre fenced area and in the middle is an ultra ball
Viridian City: None Currently
Pallet Town: None Currently
Route 1: None Currently
Cinnabar Island: 1 Currently: 1) in the extreme top right corner that you can reach there is a rare candy
Seafoam Island: None Currently
Route 19/20/21: None Currently
Route 22: None Currently
Route 28: 3 Currently: 1) make your way to the top right corner that is surrounded by rocks (not the area with the reception gate building in it but left of that a bit) you find a rare candy 2) in the far right of the map in the area jutting out on the right side there is a fenced in area with a full restore in the middle of it 3) there is a dire hit revised later
Mt. Silver: 2 Currently: 1) enter from route 28 go up and right then take the stairs follow along until you reach stairs going down, take these stairs then go right and down jumping ONE fence, on the left of the rock is a Dire hit 2) full restore, ultra ball revised later

Know any?