Fossil Hill ("Fossil Hill, Hot Spring Mountains, Idaho Territory"), Nevada, United States; Pliocene [details]
Fossil Hill ("Fossil Hill, Hotspring Mountains, Idaho Territory"), Nevada, United States; Pliocene [details]
Fossil Hill ("Fossil Hill, Hotspring Mountains, Idaho Territory"), Nevada, United States; Pliocene [details]
Fossil Hill ("Fossil Hill, Hotspring Mountains, Idaho Territory"), Nevada, United States; Pliocene [details]
Fossil Hill ("Fossil Hill, Hotspring Mountains, Idaho Territory"), Nevada, United States; Pliocene [details]
"[Hot Spring Mountains, at Fossil Hill, Idaho Territory], and from same formation at Castle Creek; Idaho", Nevada, ... [details]
"Hot Spring Mountains, at Fossil Hill, Idaho Territory", Nevada, USA; Pliocene [details]