Investigators had hoped satellite images would have provided information about the area in Shoshone National Forest where Amy Wroe Bechtel, 25, may have been before she disappeared July 24.
Reasons why images are not forthcoming vary.
"I don't think there were any taken," said Cheyenne FBI agent Joe Moore.
But Fremont County sheriff's investigator Roger Rizor said the FBI told him weather problems dashed chances of getting a worthwhile image.
Bechtel vanished while scouting out a route for a foot race in the Loop Road area of the forest near Lander.
Although there have been no breaks in the case, news articles about Bechtel's disappearance have resulted in a continuous trickle of calls from psychics and others, including people claiming to have seen the woman, Rizor said.
Officials involved in the case met last week to rehash the case. Meetings occur about every month, he said.
"We do have a few things that, come spring, they want to try," Rizor said.
But he would not divulge any details about the tactics.
Rizor did say searchers plan to return this spring to the Loop Road area where Bechtel's car was discovered the day she disappeared.
Investigator Dave King, who trained at the FBI Academy at Quantico, Va., while Rizor was head of the case, will take over as lead detective Friday.