Only if it is public or you have the owner's permission; entering private property without consent may be trespassing.
Go in daylight with someone else, tell others your plans, carry water and a charged phone and plan your route.
Do not touch or move it; photograph it in place if safe, record GPS coordinates and contact investigators immediately.
Do so from public places if necessary, approach owners respectfully and avoid publishing identifiable images without good reason.
Date, time, weather, lighting, photographs with location data, distances, travel times, sight lines and changes since the case.