The woman started Tuesday with a trip at 07:00 in Smågiljane just south of Vangsvatnet on Voss. She then had a trip to Gråsidetoppen.
The woman is alone in the mountains with a black small dog and is illuminated to be in good shape. The police report that the family of the woman is afraid that something happened to her.
– A sea-king helicopter from Florø is on the spot to search. It stays in the area as long as it is light ", says officer of the police chief Frode Kolltveit.
The Red Cross has ten people and Norwegian rescue dogs meet seven teams.
– Will look beyond the night
The woman's family states that the trip would last about five hours, including breaks. The woman must be known in the area.
Kolltveit says that the rescue team on the spot will continue the search with the same force during the night.
"It would be good to be around there, it's a way to get along with each other," he says.
The operation leader says that two tips of two have been observed, but the tips are not completely gone.
There are good weather conditions in the area, police report on Twitter.