As part of the investigation, officers from Staffordshire Police were due to be carrying out "anniversary checks" in the area of Great Wyrley on Saturday.
The assault took place at around 5pm on Saturday, April 24, when the woman was walking her dog in woodland off Walsall Road, near to The Star Inn.
The man fled in the direction of Fishley Park.
As officers continue to speak to witnesses and scour CCTV, an e-fit of the suspect has been released.
The man is descried as white, in his late 20s, approximately 5ft 10in tall and had a local accent. He is also described as having light-brown hair and bushy eyebrows.
He was wearing a faded black hooded top, a blue surgical Covid mask, a baseball cap with a black peak, black polyester jogging bottoms with a white stripe around the shin area. He was also wearing black trainers, similar to Nike Air trainers but unbranded.
DI Beverley Matthews, of CID South, said: “The assault occurred in daylight hours and we are particularly interested in speaking to anyone who was in the area and or at or near The Star Inn.
“We are keen to speak a man wearing dark clothes carrying a backpack, who was in the same area, prior to the assault at approx. 3pm.
“We are committed to tracing the person responsible and people in the area will notice a highly-visible police presence while further enquiries are conducted.”
The victim is being supported by specialist officers as efforts to identity the man continue, the force said.
Anyone with information, CCTV or dash cam footage, can visit the Major Incident Public Portal website.
Alternatively, call Staffordshire Police on 101, or Crimestoppers anonymously on 0800 555111 or visit crimestoppers-uk.org