11 Easter Eggs were found for "the big valley":

Item	Title	Rating
Valley Girl	Valley-Speak to English Translations	2.0 with 5 votes
Valley Girl	Locales of the Vals	5.0 with 3 votes
King's Valley 2	Cheatcodes for the Best Puzzle Game on MSX from Konami (NOT AN EGG)	5.7 with 3 votes
E.R	Valley Fever	5.0 with 208 votes
Ballad of the Jealous Lover of Lone Green Valley, The	Young Portrait of Future Legendary American Artist	8.1 with 34 votes
Power Puff Girls	Ms. Sara Bellum's "Address"	7.3 with 81 votes
Atlas Shrugged (Ayn Rand)	Author's Cameo Appearance	6.4 with 79 votes
Serious Sam: The Second Encounter	Crollywood	7.0 with 5 votes
The Castle In the Sky	Ferret Fox	9.0 with 1 votes
Gun Buster	Totoro and Nausicaa Reference	10.0 with 3 votes
Tomb Raider Anniversary	The Spider- Bush!	5.0 with 2 votes