Another word is a pelt.
hide as in animal hide
skin, pelt
"The Skins"
hiden
Hide.
hide
Animal skins weighing 15 pounds or less when they are shipped to the tannery are called kips. This word is used to describe skins from small or young animals.
Another word for conceal is to hide, disguise and hold back.
hide
hide pelt
hide a secret or emotion
Another word for dense earth could be compacted soil.